I'm not really sure that your take on Coco's reception is on the mark. It made $800M worldwide, which is huge for an animated movie (and about the same as Inside-Out, another big hit). The characters seem very popular too. The cheers when the Coco section began during Together Forever at
Disneyland is a good example. Other than that, I agree with you about the changes in the audience. It's not that Disney is "out of ideas" but more what Audiences are receptive too at this moment. They are only playing to that.