I mean, I think that’s exactly the goal. If IP were the exclusive purpose, then it would be Radiator Springs. Instead, they’re using the vastly lesser-known Piston Peak National Park to bring in elements of Yellowstone and Yosemite while still fulfilling the IP mandate. I agree that it would be improved by removing the IP altogether (mostly because they could then exclude modern vehicles), but they’re using a more obscure series that celebrates the national parks setting so that the attraction area does the same by proxy.