I think the frustration here is seeing the decay of the open web and the rise of AOL-esque walled gardens in which your Facebooks and your Googles own the access methods, and every other third party is subordinate to them.
These guys at Google are abusing the web in order to prevent you from navigating away from google hosted content (I'm a technical user and it still took me way too long to find that menu in the corner), in much the same way that Facebook apps make it hard to escape their respective walled gardens.
It really does make google search feel broken. Many of the top results no longer "work right".
Ignoring all the other issues of who is in control and whether it's a walled garden and all that other stuff… On iOS it's a terrible user experience. That ALONE would make me hate it.
If anyone gave a shit about Chrome for Android before, AMP might not be necessary.
No one's complaining about AMP the web framework — which is the part responsible for the performance and responsiveness.