Then he must have finished paying them off, because that was the deal that they made with him. Rise talked about it on their facebook page.
People act like because the dude overdoes it with the vibrato, he's fucking Pavarotti. It makes no sense to me. The dude is decently talented, but that's as high as I'll rate him.
Vibrato has nothing to do with why he's a talented vocalist. The guy has fantastic range, and absolutely immense power - most vocalists are lucky to own one of those skills, and he has both.
He's a mostly terrible songwriter, but as a vocalist? There really are very few better. If you only rate him as "decently talented," I can't imagine what singers you find better or worse.