Ironically many of the things you are identifying about the iPhone are also true of the Vision Pro - for example the eye and hand tracking that enable gestures that actually work in an incredibly intuitive way is a game changer - including literally pinch to zoom.
I think there are other things you are seriously underestimating about Vision Pro - for example the quality of movies, including 3D, is better than anything I've ever seen in any home, movie theater, or other headset. It's simply stunning.
I also don't think a lot of people have tried thing like using FaceTime with the first person camera. I have, and it's an incredible way to give a presentation or explain things to people even if they are using a phone at the other end. Incredibly natural.
There really are as many steps forward, if not more so with the Vision Pro than with the iPhone.