I saw this. That personal trainer was one of the most vile people ever. He was getting results by bullying the poor woman, and you lot are right, he wouldn't have had the time of day for her after the filming and there is no way she could keep that up.
I agree that although the excessive excersise will lose the pounds, if you don't tackle the underlying cause for comfort eating yourself to becoming overweight, theres not much point as surely you would come to a point where you would give up and put weight back on anyway.
It wasn't just that he was a bully either - he was just horrible, I would have found it hard not to smack him one if I'd have been his client, and he tried to bully me like that!