I’d argue that has little to do with Disney as a corporation/organization and because humans are innately driven to create

Look around the web at the content being generated by people at home?

It used to take warehouse size buildings of people at tables sketching page after page of what were really long flipbooks, with huge machines churning to get it all together on reels.

Now 4-5 people, some nVidia cards can make something that artistically is miles beyond Steamboat Mickey and Snow White.

My kids don’t even know those movies exist. Precisely because of the points raised by OP you would look passed. Though I think you’d quickly see it’s mostly just people driven to create.

Disney is a draw to creatives that grew up on a lot of non-Disney created works Disney owns these days. A nice paycheck, not a source of creativity and inspiration.

How many more decades of Mickey, Marvel and Star Wars people doing the same old Mickey, Marvel and Star Wars looking things do we need? How creative.