But as someone who's just an end user, and not working on frontend development who likes AMP, I don't bother commenting when the opinion is extremely skewed to one side.
I love AMP. The website loads faster, feels a lot snappier, and is overall positive experience for me. That's what I care about. I don't care how it got to that point, I want usable and fast loading website - and AMP gives me that.
Can this be speed and mobile friendliness be implemented without AMP? Yes. Is it implemented without AMP? Very rarely.
Of course there's the argument with google trying to get a tighter grip on web and while that is not a good thing the truth is that I, and huge majority of average consumers, just don't care if it means better results for me.