The whole point of AMP is so that nobody ever really leaves Google. Anyone who thinks otherwise is naïve, and it's pretty fucking obvious with how the AMP UI is setup. People are saying "oh it's okay they'll change the UI when they improve AMP, V2". I doubt it, the UI was built the way it is intentionally to see if they can get away with it. "making the web faster" is just their marketing to get everyone to buy in.
Look, Google made my phone and my web browser. They are my main source of email, news, videos, and content. I spend most of my day using google devices and Google software on Google sites. Now google wants to host every site in the search results for "speed". Seem like a disturbing pattern? The internet needs to push back or be owned by Google. AMP has gone too far.