Web development is stalled. Browsers are too complicated so adding new feature to them is a pain. Mostly they've been stalled waiting for people to move to xhtml. Supporting xhtml is eatin lots of cycles for a few and resulting in no gain. Almost nobody is doing it and the constraints don't fit the web very well.

So the web is in a frozen state of indecision. This should let us cut our losses and advance web technology in a pragmatic way.