GO3 spoilers (this is not a positive review lmao)
listen, this isn't even about aziracrow or the human thing. i just hate the message man. it feels so cynical in comparison to what we were given in the book.
crowley was right the whole time and there's nothing anyone can do to actually change anything, so they have to do the apocalypse anyway (the thing they were trying to avoid for the entire series) and reset everything. he and aziraphale and everyone else, including god and satan, are all gone so they can start fresh and make everything better because now humans can choose for real. religion is bad because it doesn't actually allow you the capacity for free will, so that shit's gone now and everybody can be miraculously queer in peace because of it.
what the fuck kind of message is that. i get that it's contained within universe, but the idea of removing abrahamic religion from existence being framed as the solution to the inner conflict of human beings is genuinely insane to me as a message within the context of it being a fictional story. and that's obviously not what the writers are trying to say (or at least i'd hope not?), that's just how it comes off. but it comes of bad. and that's coming from somebody who is generally cynical toward religion.
GO1 (and the book by extension) has a fairly clear message through all the absurdism: there is no such thing as inherent evil. we are all, no matter our background (be you angel, demon, or human), morally grey by default and it is up to the individual to make their own choices. Those choices shouldn't be hindered by rigid standards outside their control. Simple and easy to digest.
contrast that with GO3: Everyone except for maybe two people organizing heaven suck ass and the whole religion is fucked. don't pay any attention to jesus at all this isn't about him (in fact here's me lamp-shading the fact that him being here at all was kinda pointless a la "seems like i never get much time"), everything he said was valuable for humanity as a whole but it doesn't matter or amount to anything. it has to be erased in order for humanity to truly be happy.
and i just don't believe that's true, actually. there are plenty of people in my life who are fulfilled by their ties to things like this without being cruel or judgmental or warmonger-y. it's not something you can just slap a sticker on that says "bad" and call it a day. and it's not like i'm blinded by the fact that religion is used to hurt people, my father is a christian nationalist. a good portion of my childhood trauma stems from fundamentalist churches. i know firsthand what it is like to be hurt by christianity and be pushed as far away from it as possible. and that's part of my point. this ending, this "solution" ignores the fact that all these bad parts of religion are still people. people wrote the fucking books that spread the religion in the first place. people don't "not have a fair shot" because they're going to hell if they fuck up, they don't have a fair shot because we're not all born on equal footing and getting rid of an afterlife doesn't fix that. this solution for humanity is entirely fictional and ignores everything about the problems the fiction is inspired by in the first place, including the fact that all that cruelty stems from us and NOT some force outside our control.
religion is a reflection of humanity, not the other way around. it is how some humans find meaning within their existence, some way to make sense of the universe none of us really understand and how it came to be, a set of values and guidelines to follow in order to keep oneself grounded. and just like people, it is messy and complicated and cruel at times, but there are also parts of it which are immeasurably thoughtful and kind and beautiful and i don't believe the "right thing to do" is to throw all of it away. and i don't think the book thought so either.
you can frame all of this as being the solution for their universe and their sets of rules specifically but for god's sake good omens is literally a critique on the way christianity functions as a whole and the different things people take from it (especially revalation), it is inseparable from our understanding of real-world religion. but there's nothing to take from it, nothing left to critique if it's gone, right? none of that ever happened and humanity is somehow miraculously better for it. it just feels like it's either ignoring the point for the sake of fanservice or it didn't care. fanfiction with no message that misunderstands its source material.
also this finale frames God as this cynical author who just did things because she wanted to see what would happen. they retconned the Good Omens universe God into fucking W. D. Gaster but lame. "I'm torturing my specialest little guy because it's funny when he puts himself in scenarios." i'm so mad.