I think that the Marvel soy banter has caught on because, as a successful mega franchise, producers want to do anything to emulate it and the banter is one of the most easily recognizable features.

Part of adapting marvel IP into the "Marvel Cinematic Universe," meant taking characters and premises that are inherently ridiculous and unserious and getting the audience to suspend their disbelief and sensibilities and just buy in and accept that the components of any given marvel movie are going to be unserious. the banter is partly there to assure the viewer that the main characters also find the situations they are in to be unserious, comically so, in fact.

"Isn't it all just so kind of heckin' wacky that we're fighting robots and aliens, and I'm in a metal suit and you've got a magic hammer? I'd rather be caught dead than actually take this premise seriously, so let's all just agree that the multiverse can be pretty heckin' strange and sometimes you don't have enough coffee to deal with memories of how your brother is a shapeshifting god of mischief and, oh brother, doesn't that mean I could use some therapy?"

let's take a break for a maudlin turn; our actors get to cry and demonstrate some pathos so someone in Brooklyn can write a medium article about how the modern superhero movie gives us the space to address our trauma in pop culture and find new ways to be valid. Thank you for the free press, and why yes, I guess I'm something of a hero myself for writing Hollywood slop because it means so very much to some people.

Actually producing something that's sincere and earnest means risking people disagreeing with you, so why be so dramatic? Why put yourself into a position where you can be judged for failing to make something good? We all know why we're here, we're here to have fun, so let's put the Whedon dialogue into everything.

"the storm troopers have jet packs? they can fly now?" "ummm, yeah, they fly now,"