Honest answer: because any serious efforts to improve HTML died 20 years ago, and the web as it's envisaged today is not an infinite library of the worlds knowl

Honest answer: because any serious efforts to improve HTML died 20 years ago, and the web as it's envisaged today is not an infinite library of the worlds knowledge but instead a JavaScript based and platform. Asking for things that the W3C had specced out in 2006 for XML tech is just not reasonable if it doesn't facilitate clicks.