Marvel has experienced small-screen successes with its Avengers and Defenders offshoots, but its mutant properties have been a bit more tortured. This lack of tangible presence is due in part to a fractured creative universe that is slowly coming together. That, in turn, has led to legal disputes between studio partnerships and shallow characters that were intended to superficially resemble fan favorites.
Source：https://www.cbr.com/netflix-firebase-better-xmen-story/
