Earlier quoted context omitted.
AMP does have better experience from the users perspective. The backlash is from the techies only. I assumed that the non-amp websites were slower due to the JS bloat, I still despise what the Web pages has become, however it turns out Google wasn't a honest broker here and instead of providing a tool that helps them and the users, they provided a tool that helps them and harms the users and bullies the website owner…
Amp gives you non logged in versions of websites. Anyone whos usually logged in somewhere is impacted negatively
To re-cap:
1) Sharing AMP links is weird, feels wrong and Non-AMP links are hard to get
2) Breaks Safari's reader mode
3) Gives sub-par experience for websites that provide better experience when logged in since the AMP version is always the non-logged-in version.
None of those are deal-breaker for me because AMP pages come as a search results and fast loading results are very valuable for me when skimming to find the right one. Once I find it, I can switch to the full version(but Google makes it harder and harder. maybe this should be 4.).