I'm also not religiously anti-IP and agree that sometimes it works great. For example, I think Ratatouille will be a nice addition and wish they would put Coco into the Mexico pavilion.
The case of Coco is an illustrative one, though. Here they have a film that just made $800 million worldwide, was well reviewed, won two Oscars, is beloved by many people, and that fits perfectly into one of their theme parks. It doesn't move merchandise and isn't a potential franchise, though, so the ROI calculations don't work and the proposed attraction doesn't go ahead. Imagine if someone at WDI proposed a massive thrill ride based on either Song of the South or The Twilight Zone today! I find it impossible to imagine that the creative possibilities would override the relative weakness of the franchises in getting those proposals green lit. I'm also not sure someone making those sorts of pitches would survive very long!
I still obviously enjoy the parks and the bones are still there of the original approach to the parks to make them interesting and differentiate the parks from one another. As everything is becoming more and more brand-driven, though, I find it harder to get particularly excited about what they're doing. Then again, I got into Disney because of the parks rather than the other way around.
Not only that, I share a birthday with Mickey!
