The sad part is that if a journalist friend of mine sent this to me to proofread for technical content and asked about the HTML5 description, I'd have read it, sighed, thought, sighed, and replied "yeah sure that's fine".

Not because I'd want him or her to look silly but because what is already there (while not entirely accurate) is about as useful as anything else one could say about what "HTML5" is in a reasonable amount of words/pages.