I don't believe that he mentioned getting rid of the exemption a single time in that clip. What he did do was point out a very real abuse of the exemption and an insane lack of auditing for that abuse. If you're someone that agrees with the exemption for churches (which I am), then you should be even more appalled.
The real losers are the poor souls that get ripped off by people preying on their poor fortune. The cases he showed were big, national scams. There are shysters in every major city in the country portraying themselves as place of worship, when they are really just pulling off a pretty appalling scam. There's one here in Michiana that's pulling this same stuff. That's not what the mission of the exemption is trying to achieve and it is easily fixed through a small amount of auditing. When they get a 100% tax relief, then we should be checking the books of more than 3 total in the last two years. As a banker, I have seen a fair share of church financials. It's easy to spot.