You're not the first to suggest some of these, but I'm extremely confused every time I see it.
Places like Mickey Shorts Theater have no room for any of the stuff that makes Muppet Vision great. Don't bother if they're just going to reduce it to its film elements. I believe these would also remove the hilarious preshow. Again, making the experience significantly worse but expecting positive reactions because they're still technically there.
Muppet Vision without the animatronics, effects, and Sweetums isn't Muppet Vision. It turns it into exactly the kind of show it's poking fun at.
And I just don't expect them to actually transfer the whole show. It would be a huge waste of time and energy and I just really doubt they care enough to do so.
The VR option seems like the most realistic one. It sucks still. But it seems like the most realistic one.