I think it depends on how many people bought Dlc on the ps3, its a motivational thing you see. if dlc was mostly bought for ps3 then they would be making the most effort with those versions. its likely though that theyve had time make sure every things in sync, but its far from the top priority. their still preparing to ship the game out, much less having to make the dlc.
As much as I hate to agree, I do. Unfortunately I waited a while to buy BECAUSE of this (and when I did buy, I only got point lookout and broken steel) , it really angered me and made me feel like my money wasn't appreciated. If they wait again, I will probably choose the same tactic, although they will most likely not care to notice. It was and is a really bad idea to try to make PS3 owners feel like they do not matter as much as the "other" players (and give us a flawed product in the end [ie- freezing and bugs]), and I'm sure most other PS3 owners will agree. Hopefully they will see the flaw in the tactic of making "us" wait waaaayyy later to get what everyone else had at the same time.
EDIT: it made me sad face, too