.
I would argue that it didn't get old until Apocalypse, or at least that was the point that the movie offered nothing new to that thread.
Besides of the fourteen movies made to date/slated to be released, seven of them (the three Wolverine movies, the three Deadpool ones, and New Mutants). In other words, Magneto/Xavier only happened in half the series and the highest concentration was early on, not so much now.
You say that like it's a bad thing. Besides, he wasn't in/a major role in every single one, anyways and they were moving beyond him.
You lost me.
The X-Men movies made as many changes as the MCU and other series have to their source material. It's no different then any other book adapted to film.
Simpler? Don't think that's a defendable position in a post-Spider-Verse world. And, like noted before, the MCU does not "respect canon," as we've seen when they adapt their stuff. Will Marvel Studios make good movies? Hope so, but better they make a good movie then slavishly be exactly like the comics to a T.