K-Roc, you are indeed missing something...I suspect that it's experience. Do you hunt? I tend to think you don't, based on some of your comments. Recovery of the animal the next day, while perhaps not ideal, is far from uncommon. I'll bet that bear was speared late in the day; combine that with the very reasonable tactic of waiting for the animal to expire quickly and nearby, rather than immediately rushing off after it and perhaps provoking it into a charge, or causing it to run large distances into possibility difficult terrain, and the next day recovery was quite reasonable. Judging from the distance it covered (60-70 yards, based on the dialogue in the video clip) and the extent of the injury, it probably expired at least as quickly as any properly-arrowed game...probably even more quickly.
You talked with "3 hunters so far". Not three other hunters, which reinforces my doubts as to your experience; I don't know anything about theirs. They don't like the idea of spears because of inaccuracy; however, he obviously had put in time and effort to practice, and was able to place the spear where it needed to be. They expressed doubts about a clean kill? This bear covered 60 yards and died, very quickly. That's a clean kill.
If I'm wrong...if you hunt, and have any amount of experience as a hunter...then please detail it. If I'm correct, i.e. you don't hunt, then, frankly, you don't have an opinion worth listening to. It's like asking someone what they think of a movie they haven't seen, or soliciting their opinion on a restaurant they haven't visited.
Please don't call the wahhhmbulance...there has not been, and will not be (at least from my direction) any name calling here. I'm simply asking you why your opinion of this event should matter to anyone else.
Edited to add: I agree with your assessment of his post-kill "celebration". I've hunted with guys like that, and I find it distasteful. As I stated earlier, behavior like that is commonplace on outdoor tv shows, and I suppose I can give him a partial pass due to his "youthful exhuberance", shall we say? But, you're right...that was a bit embarrassing to watch.