I do agree with you there. Though I don't consider small changes that are weighed carefully to be in the same category as completely inventing (controversial) story events that go directly against established canon. Or even plain retconning some things to make your half-assed original story work.

Disney fucked this up when they acquired the Star Wars IP: They took a beloved world where lots of authors have spent years carefully and respectfully filling plot holes, expanding upon the source material and they had to wipe it all and do their own thing.

Tons of concepts that neatly integrated into the established canon at the time thrown into the trash, and for what? A clever take on space nazis? Bleeding crystals? A movie we've seen before? Grumpy, whiney grandpa Luke? A ripoff of Jacen Solo that was executed badly? "Somehow Palpatine Returned"? All of these concepts sound wild because they are, they make no sense.

The only sane piece of grey area canon we have left is the whole Old Republic era (both the KotOR games, comics, books and the MMO). If those get the same treatment I'm never touching anything Disney again.