It was a crack at Loeb. While his earlier stuff was great, pretty much what you mentioned there (although I maintain that Hush was completly ordinary), now a days I find that his books carry more on the always awesome artists that he is assigned and not the merit of his writing. Personally I think his writing from Hush on is horrible and that he is one of the most overrated writers today. Superman/Batman was terrible. Wolverine was a disaster and his new Ultimates and Hulk books have all but ruined for me the great stories that came before them. Note that in each one of these books he had an amazing artist. So they sold anyway.
Character should serve the plot, yes. He seems to think that he can actually do this, but he is no Sophocles (allow me to stay with the ancient Greeks) and I think his stories need much more work structurally to deserve the praise that he gets. I mean common, Hush was far more a whose who of the Batman world than an actual mystery thriller. Each issue was merely an excuse for him to fight somebody new and not really a part of a wider tale.
Heh I have read those books, of course I have. I have Spiderman: Blue on my wall, because I would marry Tim Sale.
Now normally I wouldn't say this to anybody. But if you don't believe me, read some of the recent stuff I suggested. Oh yeah, he did that Onslaught Reborn thing as well.