I think the real concern about AMP is not that it's nonstandard, but that Google's caching mechanism reduces publishers' control over how their content is prese

I think the real concern about AMP is not that it's nonstandard, but that Google's caching mechanism reduces publishers' control over how their content is presented and keeps users on Google's domain. This is a problem for publishers, but I assume it increases performance (perhaps because Google prefetches the page while the user is looking at search results?).