I find this recent discourse for atla really interesting cuz like look at the end of the day the non canon ship gets more love in fandom typically cuz theres more to explore with it fandom is for what you dont get in canon and all that so historically imo Zutara has dominated in the ship war more people seem to like it. So why the sudden flip?
Well theres been a rise of a respect canon cuz its canon people so that is a factor but i dont think thats the main thing .
I think basically its 2 things
1. There were a bunch of people who heard alot about zutara but hadnt watched avatar or had a long time ago and were not big into fandom who were expecting to see alot more content between Zuko and Katara given the popularity and didnt get it it got over hyped to them when they watched it /rewatched it. And so now fully divorced from the original atla fandom and their experiences the ship doesnt make sense.
You didnt see the voice actors ship it or the creators mention it or even the animation thing where they were all chibi and in school and they made a love pentagon with Zuko Aang katara and the blue spirit who somehow was his own character despite being Zuko.
To be fair you dont have to the source material is enough to interpret things but without that context shippers seem more insane so its a unfair reading of the fan base's attachment to the ship. And of course all all long running fandoms they do start fuelling their interest from fandom more than canon when theres not enough content and it becomes its own thing not really reflective of canon which is fine.
But perhaps some forgot how far theyd deviated from canon in their portrayals while still fueling discourse which both confused those outside the fandom and made them frustrated .
2. They saw the clips of the new movie or all of the new movie and saw Aang as attractive
I don't say this to be dismissive but in fandom it very common that the ships that get popular are with characters who get accepted as attractive or with characters who are considered relatable or are otherwise projected on in some way. Katara Toph Zuko and Sokka were all some combo of this Aang tho wasnt. So Aang ships didnt tend to be as popular outside of the kataang shippers from my experience.
Then we get this poster of Adult Gaang
And this design of Aang in Legend of Korra
And tbh neither were very popular while the other designs were very well received
People hadnt been as curious about adult Aang as a design compared to some other characters (Zuko) so there wasnt a super popular fan design that got latched on to either. So that did not help with the shippability of aang.
But then the movie comes out this the redesign
And people like this look more
And then the movie leaks and people see clips and suddenly
Oh no hes hot now we getting thirst traps
Now you could say hold on now people have made intimate objects and fish and lions and horses redesigned to be hot people.
But there are certain personality types that get those redesigns and they typically aren't the sweet peace loving types.
And now finally in 2026 Aangs shippability is getting a bit of a boom and so the first ship that gets looked at is the one that got the most attention the one that was involved in a ship for over a decade aka kataang.
This is not to say that no one had any Aang ships just that they werent as popular as ships with other members and when they might have been typically.
Aang has just as many parallels and thematic connections with Zuko as Katara does if not more. Their ancestors are linked Katara tried to talk Zuko out of his path in Ba sing Se but Aang tried in S1 when Zuko rescued him in the blue spirit first. Their backstory episodes are told together Aang even cuts ties with Roku in the comics because he suggests Aang might have to kill Zuko.
In many fandoms that kinda thing is the basis of at the very least a very strong friendship that down the line could blossom into a really popular ship that dominates a fandom
Can't really deny that but in spite of that Zukaang didnt get much traction.
And i think it didnt because people just werent that interested in shipping aang at least not the masses but thats changing now and im curious what new ships will now start getting more popularity. Im personally hoping for more aang ships.