Yes, this was a terrorist attack, which he made clear from day 1, which, for all he/they knew, was inspired by the video, and could have been pre-meditated. Which was all said in the first few days. It was quite possible, at that point, that the terrorists capitalized off the emotions from the video, and attacked while suspicion was elsewhere. There is nothing about it that smells like cover up and it all sounds like a developing news story with details emerging as more information becomes available. The presidents MAIN JOB is to inform the American while minimizing panic. If I were him, I would have said the same thing given the information he knew at the time.
If the conspiracy theory didn't have Hannity's name all over it, since he was the person that created it, it'd be a little more plausible. But this is definitely more "witch hunt" than "lets figure out who/what'a responsible" at this time.