Sorry that you experienced such difficulties, but I am glad you wrote this article to warn people against using AMP. Between responsive design and HTTP/2, there is no need for google to get involved at all. And speaking as a professional web developer, any "solution" which uses a special "mobile only" website when browsing on phones or tablets is a hack, and not a real solution at all. Mobile only versions are an ancient relic which were supposed to be eliminated by responsive design. Google really dropped the ball on this one.