Earlier quoted context omitted.
You may consider that we do understand pre-render, but don't like the trade-off involved. A full on AOL style walled garden could be even faster. It could mandate brotli, force a common css base, only offer one kind of ad platform, etc. Should we go there?
The person I was responding to said that AMP was fast for a reason other than prerendering. That's wrong. Prerendering is the main point of AMP, which is what I pointed out in my comment. A full AOL style walled garden is what Apple News and Facebook Instant Articles are. AMP enables the same speed in a way that any link aggregator can take advantage of without having to strike deals with individual publishers.
AMP also requires I include a Google owned and controlled piece of JavaScript that they can change at any time. That's literally in the "standard". In fact, a bad update borked all AMP pages for quite a while some time ago.