I'm not condoning what happened to that village, obviously. That was horrible. But an out of control werewolf who wakes up to find they've done that... that's horrible, too. If they're still human enough to want to prevent it happening again, I'd help them with it.
Then again, I don't usually have the luxury of sticking around to make sure the containment is done right every full moon. But since I'm here, and I don't appear to be going anywhere, I can do more to make sure it works.