This time Microsoft holds has leads in too many of the key technologies and markets for anyone to effectively compete. We know how effective they have been in the past when they had far fewer resources than today.
It's not the same world in which MS won those previous battles. Having a web technology that works well in IE, not so well (or at all) in other browsers and on other platforms? It's just not going to fly very well. the MS technologies he listed may well be better, but they aren't enough better.