It's solely the search engine boost you get from AMP that bothers me. Because of the money involved many sites have no choice but to implement AMP and stay competitive. If it weren't for that, it would just be another technology and the fact that it only works in few circumstances would probably make many sites not bother with it. The UX downsides would probably see many sites actively avoid it.
The fact that it has seen such adoption is testament to Google's ability to influence with it's rankings alone.
Have you noticed ranking improvements? We've done AMP on some sites and not others and we saw no difference in ranking.
Sure, having a very quickly opened page is nice, but on the other hand, features are limited. That might or might not work well, depending on what kind of content you have, what engagement you're looking for.
On iOS it continues to be very broken, although the difference in scrolling "inertia" was resolved by Apple.
AMP introduces a very non-Appley top bar within the browser, adds new swipe semantics that can be confusing, breaks "tap status bar to scroll to top" behaviour, breaks reader mode (although this is inconsistent), and generally looks out of place. The best way to describe it is like a GTK or KDE app running in macOS. It's clearly not a "native" experience and doesn't really look or act like any other webpage in mobile Safari.
Most people do not like to be forced to do things a certain way. Especially if they have a working site already and now have to remake it from the ground up just because some other actor decided it isn't good enough to get visitors.
Just you wait until you notice you can't go to town in your car any more. Only teslas are allowed into city.
That's a bad example for me personally since I think all cars should be banned (except maybe electric cars but I haven't done the necessary research to see the actual environmental impact). I haven't used my driver's license in years and always take the train (I've also stopped flying).
But anyway, that's off topic. I understand that it's a pain for developers but for users like me who are often on a bad connection it's a life saver.
