Could make that argument for every genre though. Racing games will always fundamentally be about making a vehicle get to a finish line before the other ones, etc. Applies outside of games, too. Music, books, film, if you set the bar for innovation that high then we just all stop doing art.
I agree this seems kneejerk. If Meta refuses to abide by the standards of interoperability and openness then lock them out, but by doing so ahead of time the fediverse is committing the crime it’s pre-punishing Meta for.