I think the (much, much) bigger problem with AMP is that it restricts the future. If you're only allowed a subset of HTML otherwise your site won't rank which

I think the (much, much) bigger problem with AMP is that it restricts the future. If you're only allowed a subset of HTML otherwise your site won't rank which is entirely dictated by how fast you can get back to Google serving more ads, bye-bye HTML, bye-bye innovation, bye-bye open web. When all websites have to be AMP as you get heavily penalised for not being AMP, why would you keep up the HTML version of your site? The internet will be forced by Google onto a standard that heavily benefits google, and heavily penalises the things we should actually care about, which is an open web on our own servers, not controlled by centralized CDNs, and content makers. What's worse, how long before google start including "other people searched for" in their top bar as soon as you scroll up a bit? And then how long before google start showing their adverts at the top of your web page?