OK, here's the post-challenge video.
into their discussion of how it felt, they get several other people from their "staff" to try small pieces of the killer pepper (I suspect at least in part to get their friends to realize that their reactions were real and not staged).
I think their reactions, particularly the young woman's, are more revealing than the macho "tough it out" reaction of the original testers (even though they ate more).
My only suspicion that this may all be fake is that there is no "my G-d, I've been MACED!" reaction when they started cutting up one of the peppers to pass around.
Hint: I you ever decide to use a food processor to grind raw horseradish root instead of hand grating, get someone ELSE to open the food processor when you are done (and hopefully at least a block away). Having made that mistake when preparing a large batch of fresh ground horseradish root for Passover one year, I will take pepper spay in the face before doing that again.