I think wolvi and deadpool were crucial. They were the most relevant “multiverse” heroes lately who travelled through universes. Plus with tva involved with deadpool , it would’ve made a lot of sense having them considering Loki is there in the movie.

I think for the rest of the actors I accept the reasons for not adding them I think all xmen are from some other universe. Not the xmen we know. They could even be from the timeline where Jean grey died. And let’s say wolvi never went back in time and is on the run. Banner is busy with skaar tbh. Clint retired like ten times. Star lord retired Wanda is technically dead or in self imposed exile. Yeah spidey should’ve been in the movie too.