I for one love Monsters, Inc., it’s my favorite Pixar film. What I don’t like, is the removal of Muppet*Vision 3D for it when areas like the launch bay exist. Now the new Monsters area will always leave a sour taste in my mouth.
I believe (as with all things Disney these days), it came down to money. Muppets Courtyard already had the infrastructure in place for two restaurants, etc. and it was likely cheaper for them to repurpose those kitchens, facilities into Harryhausen’s, etc. than it would be to build them from the ground up.
Like, I understand the logic behind that decision-making. Still, it doesn’t make it any less disappointing to me.