Seeing a lot of people saying, THIS AQUAMAN MOVIE WOULD'VE BEEN BETTER!
Zack was telling a SUPERMAN story. And wanted to tell that Superman story in a world with these characters in it. And Zack being Zack, he writes a bible for the universe with backstories on everyone down to the janitor who gets attacked by a Parademon.
TRUE Snyderverse is just his 3 movies. Wonder Woman is not what Zack wrote for Diana's backstory and Aquaman isn't what Zack wrote for Arthur's. Zack and his crew created a way to show Atlantis and how Atlaneans communicate, which James Wan changed to just flat out talking underwater. He also had Amber Heard drop the bad accent she was using.
Zack is a very collaborative person and wasn't in charge of DC Films, so the backstories changed of course. I always said Aquaman was SNYDERVERSE ADJACENT, and now it looks like more agree with that. But with that, you're going to have to stop using it's billion dollar box office in the capeshit wars...
This does sound awesome and DC Comics is leaving money on the table for not creating Snyderverse books that can fully explore the DC bible he created.