I can't bring myself to watch the video, but done correctly confrontation can sometimes help esp if you have a person with whom other gentle or more understanding methods have been tried to no effect for years. Sadly, the incredible fucked up Scientology belief system that poor guy subscribes to does tell him "he pulled in" a terrible disease like MS and then treats him like shit. I'd always say go for compassion and understanding first, but if that's been tried and years of abusive, money grubbing behavior from the cult hasn't caused him to question his beliefs, and you have a three minute window with them, maybe uncomfortable confrontation of his belief system and how the cult views and treats the disabled, might plant a seed or shake loose a bit of critical thinking.
I find it incredibly sad a man suffering from MS continues in Scientology, and they only allow him there so they can milk him for any last bit of silver he might have. If the man was broke, or his family had no money, he wouldn't be allowed in the front door. It's deplorable.
I may not agree with AGP techniques, but the problem really is the cult's treatment and view of humanity and people who suffer from any type of disease or disability.
Wasn't MS the same disease the Uwe Stuckenbrock suffered from at INT - and painfully, needlessly, went to an early grave due to the cult basically imprisoning him because they didn't want to risk their former security officer having contact with his "SP" family? Makes me sick to think about it.