Read back a few pages. While there's certainly the element of it being hard to indulge in the illusion when your brain knows the scene is so obviously just a 3D screen (what with the glasses on your head and flat surface), the two mediums of show scene design require completely different approaches. Some of us prefer one or the other for a majority of attractions. Some of these 3D experiences are AMAZING and completely justify their existence - Spider-Man, Transformers, (looks to be) Gringotts - but that's enough. There's only so much that can be done before it gets excessive.