I feel like we're talking at cross purposes. My point was primarily that OP's Chromium patch could be the start of an excellent tool for website creators to unlock their own sites' and web applications' rendering potential, and level the playing field between smaller startups and much larger technology companies.

I'm quite familiar with anti-scraping and anti-ad-blocking countermeasures, and the first thing any such tool would block is a non-standard rendering engine like this - so unless the website creator consents, this really doesn't hurt or help consumer-friendliness (which, I agree, is in a sorry state these days) in any meaningful way.