Well, I think a lot of people respect Warren Spector as a game designer, as well. From things I've read, he's been very passionate about the title in the last month or two. I really get the feeling he didn't actually play the game, himself, to see how dull it really was at points.
I wrote my E3 impressions giving the game the benefit of the doubt, but it's clear that it didn't change in execution at all since then.