I repeat, you cant judge anything about how long the guy "let the animal suffer" because you are getting less than 30 seconds of the entire ordeal. For all we know, that pig was finished with another shot off right after the video stopped, and it died in less than 30 seconds from the original shot. How the hell is that letting the animal suffer any longer than what many of you feel would be an ethical shot? Ive hit deer in the lungs before and had them run for alot longer than 30 seconds before they expired.
You guys are just doing way too much assuming. The only things that can be taken away are that the guy chose what some (including myself) feel was not the best shot, he was an idiot for the laughing and letting the dog go, and although it wasnt the best shot it did put the animal on the ground. The rest is nothing but conjecture, intent on shot placement, ethics included.
Oh, and for those that say you have never made a bad shot, you are either full of it or havent hunted long enough. It happens to everyone at some point.