HN itself? Nope. Many publisher sites do benefit however. Especially local news sites that likely can't attract the best tech talent and/or contract out pages to be shoveled out by contractors.

Re: Abuse of AMP. AMP places sane restrictions on pages https://www.ampproject.org/docs/reference/spec#html-tags including hard limits on CSS size, etc... Google enforces these restrictions for pages served through their servers.

This is a much much needed effort to take the publishers toys away given they've proven they cannot be trusted with the full feature set of the web without adult supervision.