Can't help but notice this thread popped up the same weekend as The Great Muppet Meltdown.
Obviously the online fan community uproar over the closing of a dated "screenz" attraction and the worst QSR pizza in Orlando was about more than the Muppets. I posit that it's Millennials realizing the great pop culture freeze they grew up in -- which started in the mid-90s, lasted until probably 2020ish -- is finally fading. People in their 30s and 40s realizing that top 40 radio won't always be Taylor, JT and I-V-VI-IV songs, that the biggest movie of the year might not always feature Marvel superheroes, fashion might finally evolve from Starbucks barista chic, and that the theme park rides they can spiel by heart won't always be there. They've been in-tune with what's "cool" they're whole lives, and suddenly the kids are shouting "Chicken Jockey!" and for the first time they don't get it and it's so dumb and for the first time they feel their age. "I was hip and with it ... but they changed what 'it' is!"
So they cling to the IPs they spent their whole lives with, most of which they inherited from Gen X anyway. The Muppets. BTTF. Ghostbusters. Jaws. But these are only nostalgia plays right now. In 10 to 15 years, they'll be even more dated -- and its likely that era's teens and 20-somethings will be clamoring for something not even on our radar at the moment.
This is the danger of single-IP-themed lands. "The American Frontier" is generic enough to evolve into what each generation needs it to be; Far Far Away will be forever tied to a 90s movie very much of its day. The Magic Kingdom of 1991 looked very different from that of 1971. Universal Studios of 2025 has exactly 1 ride in common with 2003 Theme parks need the freedom to grow and change. And becoming a nostalgia museum impedes that.