The first time this was posted I was pretty much certain the bear had been hit. Looking at it again now, I'm still of that opinion, despite the fact that people who claim to know the folks involved have stated that the bear was absolutely not hit. The bears I've tried to drive off with live fire have never reacted as quickly as that sow did. IMHO live fire is a poor deterrent if you don't intend to kill the bear, because I've never seen a bear turn tail and run from a gunshot. Cracker shells for some reason work much better. This is particularly true if the bear is intent on a target, and if you look at that bear you know she's focused on her target. If hit, the bear would react immediately, although how it might react is never a sure thing.
Remember the Cabelas video where the guide and hunter were charge by a female bear which the guide subsequently shot and killed after yelling and waving his arms to try to get her to break off. A boar was killed by the hunter, then the pair was charged by the female with what appeared to be second year cubs in the sand dunes of coastal Alaska. That video provides and interesting comparison to this one. Compare how this bear reacts to the shot with how the Cabelas bear reacted. This bear reacts exactly as the bear that was killed, except that this bear made it to cover while the bear killed in the dunes piled up a short distance from where it had been hit. As they claim that the bullet didn't find the bear, did they ensure this by following up the bear? I doubt it. I suspect that because the bear was still on its feet when it made cover, they simply assumed a miss.
I'd almost bet money that this bear was hit, how well or how poorly is the question. I'm not suggesting these guys are guilty of anything, just that they misinterpreted what they experienced. Either way, the video is a very cool example of an unprovoked or at least unintentionally provoked bear attack and one which underlines the fact that a handgun is a useful tool in the wilderness protection role.