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For real though, IP attractions can be done well, and anyone saying there shouldn't be anything based on IPs is probably trolling or somehow forgot that the original Disneyland had "IP" in it on opening day (albeit all contained to Fantasyland).
IMO, the best combo is non-IP lands that can fit a number of IPs in them, like the original lands you see at castle parks. That makes it easy to switch things out and keep the parks fresh, instead of building a few lands based on specific IPs and praying they're evergreen. The original/supposed MK plan to put Coco in Frontierland, Moana in Adventureland, and then the new land being Villains all fits that idea well. If someday Coco or Moana aren't relevant, you can swap them out for something else that fits Frontierland/Adventureland. And Villains will always be evergreen, so there's no worry there.