[hackrmn]

I think this is _the_ most popular criticism of HTML 5 vs. XML, that I have seen mentioned. Which is telling, quite frankly. It makes me think that the powers that be that pushed HTML 5 really had a different agenda than what they purported to have. We might never know the politics behind it, but I struggle to comprehend the wisdom of a decision to basically overhaul the lingua de franca of the Web because "XML parsing is hard!" then replacing it with HTML 5 and its peculiar "context sensitive grammar" noone ever remembers or bothers to look up, and the other features like custom elements (with the latter, by the way, in the spirit of "let's just ship it and see", they kind of foundered with the sub-classing there -- Apple rightfully refuses to implement some of Custom Elements API because it flies in the face of Liskov's Substitution Principle).