Let me get this straight, you think people aren’t buying the Vision Pro en masse because of its UI design rather than some combination of the steep price, weight, and limited software? Setting aside that Liquid Glass really doesn’t look a whole lot like prior visionOS versions, is your position that because Apple hasn’t shipped tens of millions of Vision Pros, they should never implement any concept from it in any other product? That it’s basically untouchable?The decision to create a whole new design paradigm around what is a failure of a product (Vision Pro) is baffling. No one outside of Apple was saying "this looks incredible, make my phone look like this."
Otherwise, I’m not sure how the “failure” (Apple clearly doesn’t see it as one) of the Vision Pro is relevant at all here.