X-teams only let mutants be on the team. Wouldn't it do better for promoting co-existence between non-mutants and mutants if you had them working together like that? Just a thought. I know the Avengers have Quicksilver and the Scarlet Witch, of course, but...
Potentially. I’m very skeptical that mutants WANT to co-exist in the same space as humans in this Krakoan Age. Mutants have shown very elitist ways lately and creating their own mutant planet solidified that for me.
If anything X-teams should have supporting mutant members, less popular characters from the main teams we havent heard much from that can be built up in the books.