It makes a lot more sense for browser makers (which, by my last count, consist mainly of four or so major vendors... FF, Chrome, Safari, and IE) to have to keep up with novel web standards than for web developers (10,000? 50,000? 100,000?) to have to keep up with browser inconsistencies. Sure, there are places where the standards are inconsistent. This sort of shift will force the W3C to move faster to improve the standards, which is good news for everybody.