If anything, we should take the suggestions of Douglas Crockford
Any complaints I make about the upcoming HTML spec is completely trivialized by the fact that there is an upcoming HTML spec. Do you know how long it has been since any major shift in web formats? We're talking pre-Mozilla days here. I can't imagine the migration required with an internet the size we have today. The web makes a great platform, in my eyes, but upgrading the platform itself is working with the world's most ineffectively administrable network. Deploying can take years, even nearly to a decade.
We need to hold ourselves steady on the standards we can't even agree on today and just stop jumping on them. Break the foundations, crumble them down. Browsers are great at just working with what they're given. There is no such thing as an error, only being less affirmative. If we can take advantage of that, through arbitrary tags and attributes, we can really build something out of less.