Question: I enjoyed s1 OF OFMD, but for various reasons I never actually got around to watching s2 (pick up most of the plot from tumblr tho). What exactly went wrong in s2 that got so many people upset?
Oh, boy. Very long rant incoming.
So, for context, S2 had a significantly smaller budget, which necessitated moving the filming location to union-unfriendly New Zealand, reducing the number of actors/number of appearances of established actors, and cutting down the number of episodes from 10 to 8. In a show where each episode is only about half an hour long, that last one alone was enough to seriously hamper any character development or plot. I am very comfortable putting the vast majority of the blame on HBO because of these financial decisions.
The short version is that Jenkins et. al. needed to address and build on the problems left hanging in S1 while also getting the characters to the end of their character trajectories in case there was no S3 while also leaving room for additional episodes in case there was a S3, in a grand total of four hours, and failed.
The long version is that there were a bunch of what I'd consider small problems in isolation that came together and exploded in the S2 finale.
The reduced cast necessitated breaking up the crew (ex: having Swede marry Jackie and stay on land with her, so they don't need to pay Nat Faxon for all eight episodes) and not spending as much time on their relationships as S1 did.
The reduced time meant that the entire season was rushed (in contrast to S1, which takes place over at least several weeks if not months, most of S2 takes place in roughly five days), leading both to a lot of telling rather than showing (because they don't have time to show you), including vital character and relationship development.
Having the Kraken half of the crew beat Ed to death after months of being abused by him – abuse that is clearly shown to have given them PTSD and a well-justified fear and hatred of him – only for them to be okay with him two in-universe days later;
On that note, having Stede dismiss the crew's concerns about Ed because he loves him and also we only have three more episodes left to fit in everything so we need to get over it really fast, even though Stede is supposed to be well-meaning and caring (even if he's not good at it all the time);
Resolving the issue of Stede abandoning Ed in one day, then having them "go slowly" in their relationship for two days and then have some spur-of-the-moment sex, and then the next afternoon have them break up over their diverging career aspirations, and then the day after that resolve that problem and retire on land while the rest of the crew sails off into the sunset;
Stede becoming a fantastic pirate captain over the course of one day, becoming wildly popular in the piracy world two days later, and then deciding the day after that to never be a captain again because he is retiring with Ed;
Having Ed and Stede decide to retire together as what is implied to be the end point of their relationship arc, when none of Stede's issues from S1, like his poor self-esteem, have been so much as mentioned by anyone, implying that he's either magically gotten over them or they don't matter all that much, actually, even though they were the catalyst for basically everything he did in S1;
Ed having two separate character crises – "I am an unlovable person" and "I want to do something with my life other than piracy" – not spending a lot of time on either one, having moments that clearly indicate he is still working on both problems and they have not been resolved, and then apparently having them both be resolved in the final episode despite nothing occurring to actually make that happen, and in regards to the latter, despite the story actively undermining it by repeatedly showing he can't do anything other than piracy;
Related to the above, Ed ending the series as allegedly being loved by the crew as a family (thus solving Crisis #1) despite this never actually being shown, demonstrated, or even fucking alluded to onscreen. If anything, it shows the exact opposite.
This last point is especially galling to me because of what is probably the most divisive issue in the fandom right now: killing off Izzy Hands after giving him seven episodes of character development.
The show begins with the Kraken crew clearly trying to use the skills they learned as part of Stede's crew to cope with their incredibly shitty situation and care for each other, which includes Izzy. Izzy, on his end, tries to protect the crew and speak up for them, which results in him being repeatedly hurt (both implicitly, as Ed at one point says "that's another toe" in response to Izzy advocating for the crew and we later see he's missing more than one toe already, and explicitly, as Ed shoots him in the fucking leg in front of the crew when he stands up for them).
This camaraderie is shown again and again and again. Frenchie, Jim, and Archie take care of Izzy while his leg is infected, at risk to their own lives. Izzy's misery over losing his leg is what unites the PTSD-ridden Kraken crew and the well-meaning-but-ignorant-of-PTSD marooned crew, who are initially at odds, to make him a new prosthetic leg. Izzy gives Lucius advice about forgiving Ed. Izzy is introduced to drag and opens up enough to sing at a crew party, and the whole crew is having fun together while Ed and Stede are in their cabin having sex for the first time. Izzy gives Stede pirate captain lessons and bonds with him when Ed leaves him. Izzy provokes the season's villain into focusing on him and then gives a big speech about how piracy is about belonging to something, giving the rest of the crew time to try to escape.
Recall that Season 1 had some pretty well-established universe rules, one of which was that it runs on Muppet physics/magical realism. People can jump off yardarms, hit the side on the way down, and be perfectly fine. People can get stabbed in the liver and it's totally okay because it's probably not that important, and even can stay pinned to a mast all night that way with only mild discomfort. Buttons can talk to birds and see long distances without a spyglass and put hexes on people. Good people can be hurt (Stede is stabbed repeatedly), bad people can die (the Badmintons, Geraldo), but no one we care about is ever killed.
This is repeated in Season 2: Ed is beaten into a coma with a cannonball and wakes up like Sleeping Beauty after a spirit journey, with no injuries to his face or body. Buttons turns into a seagull after spending an episode doing a magic ritual and is never seen again (because they couldn't keep paying Ewen Bremner due to the budget cuts). Jackie microdoses her husbands with poison to build up their immunity, so that she can later pull a Dread Pirate Westley and poison the British with shared drinks.
So: in the finale, the villain of the season is taken hostage by the pirates (for reasons? unclear how that fits in the plan), happens to have a gun on him (no one checked??), shoots Izzy on the right side and then leaves with no repercussions. The entire crew stands around silently doing nothing while Ed cries over Izzy and tells him that he's his only family.
And Izzy fucking Hands, the guy who just spent eight episodes bonding with and protecting everyone, uses his last words to reassure Ed that him becoming Blackbeard/the Kraken was Izzy's fault and that the crew is Ed's family and they all love him. No one else says anything to Izzy or tries to comfort him or help him in any way.
I repeat: in a show predicated on the idea that bullies and bigots die stupid deaths while queer people and POC are basically magic, a show that was praised for being kind to queer people by not making them worry about their faves suffering or dying, a show founded on the strength of the relationships between the characters, the guy who went through a season-long arc of learning to embrace his pirate found family and his own queerness is shot for stupid reasons on the side we're told isn't important and dies while everyone just stands there. His last words are about the whole crew loving Ed when the only person that the whole crew has loved all season is him.
Anyway, never mind all that, let's cut to Lucius and Pete getting married and Stede and Ed retiring!
Complicating all this is that people who liked Izzy (or even said anything insufficiently mean about Izzy) were harassed for months in between seasons with insults, slurs, and actual fucking death threats. Izzy's growth was kind of a vindication for liking him: it meant that, despite all the harassment, we were right to like him and care about him as a character. Even people who didn't like him initially started to like him during Season 2.
And then he dies, and now there's a bunch of people saying that Izzy fans are big whiny babies who can't handle fictional death, and actually his death was so meaningful and beautiful and the only logical end to his arc, and it can't be bad writing because people die in real life all the time, and also he admitted he fed Ed's darkness so actually he was a terrible person all along anyway and they were right to hate him (and his fans)!
So, yeah, there are a lot of reasons why it's so hated, and I'm probably only addressing the problems of the pro-Izzy people (from what I can tell, BlackBonnet shippers who don't like Izzy think Ed and Stede's relationship is fine and dandy, but I'm sure that there are other criticisms they have that I have not addressed). I'm not even addressing the issues with Jim and Oluwande's relationship this season (and whooo boy are there issues).
It wasn't a universally bad season. There were episodes I really loved and still do. But the finale was a train wreck, and because it was a train wreck, a lot of people are looking back at what happened before the wreck and realizing that, oh, the train lost its brakes and steering because of the budget cuts and the engineers kept throwing fuel in the engine to make it go faster, and huh, now that I think of it, that part earlier in the trip was really wobbly but I didn't pay much attention to it at the time because I was sure the engineers had everything covered.