I know I don't speak for everyone, but 3D has always been a crappy gimmick that just might maybe occasionally accidentally be used in a semi-decent way. Once every thousand years or so we get Spider-Man. It was a 3D ride perfected. Top of the mountain. Nobody else has yet to match it, not even Universal because let's be honest, Transformers is a fun ride but it's a HUGE step down from Spidey.
We have demonstrative proof that glass-free 3D works incredibly well and that's because they use it to add depth to a scene, not to point a stick at the audience or throw something at your face.