Hm.. I myself think that feeding live is OK, if you know what you're doing; I don't understand why the videl was being criticized really; the snake was not injured at all as it constricted/ate the pig; you could plainly see the pig's jaws and they were not biting the snake. However, I think people need to learn HOW to feed live, or frozen for that matter; if they don't know how, either way could be dangerous to the snake. I have seen people posting about learning that feeding frozen/thawed was good, and also stating that they didn't know the prey needed to be heated!!
I grappled with this subject myself; thought feeding live was moronic for a time (until one of mine stopped eating, and I tried live, and well, he eats fine now.) Any method used by anyone, needs to be learned and done right!