There was some type of discussion on various boards awhile back, about how David Henry is a very cocky, arrogant, egotistical person. Many many people chimed in with their thoughts, and I think a couple of magazine affiliates and/or "reputable" people with stars (or whatever moniker a site designates you with) added in the same feelings about Mr. Henry.
Maybe that had something to do with it? Or he could have turned in his column late?!