The point of AMP is that the link aggregator owns the cache, not the publisher. You would have to convince Google, Bing, and all the other link aggregators to use your implementation for their AMP caches. That's why it has a standards body. If you don't understand why, you don't understand the problem that AMP solves. https://news.ycombinator.com/item?id=43733809
I believe the parent is referring to the Javascript framework, which itself has many nice properties for interactivity and performance.