Yes but that's mainly because they innovated before. Now they can just pump out generic princess story 49, which most likely is just copied from old fairytales anyway. Like I prefer animated movies that are very un-Disney, like Tarzan, Hercules, Treasure Planet, Simbad and Shrek.
You know three out of five of the movies you just listed were made by Disney, right?
Anyway a lot of modern Disney movies tell original stories. Not counting Pixar films, Wreck it Ralph, Zootopia, Moana are all very recent examples of Disney movies that tell original stories that don't just copy stories from fairy tales (although Moana is largely based off of Polynesian folklore, its still its own story).
Even the less inspired films (like Frozen II, which I totally understand if people don't like) still pushes on the animation side - that film is particularly notable for is particle effects, and they're frequently developing new digital tools help to push animation farther.
And it's okay to have preferences. If you don't like them that's fine. But it's not like they're low quality.
PS. Personally I'm not a big fan of Tarzan, since it being a love story makes it feel a bit too weird for me. But that's just me.