Full article:
http://www.mmorpg.com/showFeature.cfm/loadFeature/7540
His basic overall premise is that the desire for "accessibilty" promoted everything being presented and consumed faster and faster and ultimately the world gets lost. An MMO is supposed to be about the journey as much as anything, and that the immersion in a world has been lost in favor of shuffling people along faster.
Unfortunately at the end of the article he goes into a sort of commercial for his latest project, which a lot of people will focus on, but I think his points are what a lot of posters here have been saying.Sometimes I look at WoW and think “what have we done?” I think I know. I think we killed a genre.