Alternative stance:

Google has made sure that _nobody_ can implement a browser with hostile takeovers the "standards" committees and pushing the standards solely in the direction of corporate interests, bypassing consumer interests. The whole point was to make them so complicated it would be impossible for someone without an insane budget to implement one.

Proof of this is the whole advertising sandbox crap... what the hell does an HMTL Client "need" an advert sandbox for?

Breakups are painful. Ultimately they're better for everyone.