I think you did a poor job killing that pig. Shoot it with a more potent rifle round, or at least finish it off with something more potent than a .22 LR. It sounds like you were trying to torture the thing rather than hunt it. Hunting involves humane killing of animals, not slow, painful, squealing death. The description of your video makes you, hunters, and firearm owners look bad.
You screwed up there, and I really don't think you should've posted that particular video of a botched hunt. I personally wouldn't want to watch it. If I were going to hunt, I'd do my best to kill the prey as quickly and painlessly as possible. Use enough gun. Period. I view animals and people in a similar light--I wouldn't want to watch either of them being killed, especially in a slow, painful manner. I appreciate hunting, but if I'm not out doing it, I find no pleasure in watching someone else do it. As a hunter, I would hope you'd attempt to better represent your sport. Your video only serves as potent ammunition for the anti-hunting groups out there. Imagine your video plastered on the evening news attached to a story about hunting. It would be enough to color any uninformed person against hunting or firearms in general.
That said, I think if they're going to ban your video, they should ban all the other violent videos showing the deaths of US troops. I think they should have banned those long ago. As someone above said, the details of war and the hunt should not be aired for the public.
Just my $.02.... Don't take offense to this, as none is intended. Just don't post videos like that again, please. You represent us all in doing so. And next time you hunt feral pig, come more prepared.