They must have been watching the Bob's Burgers episode with Capoeira as they were designing some moves πππ
the explanation is that back when the game launched Kabam had a small staff, from what I read, and so that's why a lot of early characters have very similar animations and even very similar looking character models (female, male, bigger male (Colossus, Drax), biggest male(Hulk, Abomination) plus skinny male for Spidey.) and why there's only about 6 victory animations between the earliest characters. It actually annoys the snot out of me to see characters reusing the generic male victory animation of Cap/IM/Star-Lord/IP/SIM after all these years and the much better ones we've had since.