the future is not rendering and linking documents on the Web. the future is rendering and linking data on the Web. and there is nothing here to make that experience any better than it is today (which is lousy). in many ways, the HTML5 effort makes it harder to build linked data applications since most will need to continue to rely on heavily scripted Web apps. and "over-scripting" is another sign that the common Web browser is an out-dated product.
Considering that the HTML5 effort was originally called "Web Applications 1.0" I rather think he's missed the point.
HTML5 isn't (just) about rendering documents - it's a full application development technology.
I don't find his statement that "over-scripting" is another sign that the common Web browser is an out-dated product particularly compelling - in fact I don't even understand what it means.