Sure, that could have been his intention instead. Didn't follow that debate and hadn't read that story, so, yeah...
The paradox doesn't lie in them promoting a certain philosophy. The paradox lies in them promoting a philosophy (or belief system, if you will) that seems completely at odds with itself when put under scrutiny.
AliceApocalypse hit the nail right on the head, suggesting how a lot of these self proclaimed satanists probably have little idea what they're actually preaching or worshiping. They just liked the covers on whatever metal bands releases and suddenly, they've embraced a lifestyle because it looks and feels cool more than anything else.