You're never going to convince anybody in this particular forum that playing with a pick isn't the bass player's equivalent of being Joseph Mengele, so don't bother. Doesn't matter if you're right, though you will be in some cases and not in others.

But, to be honest, in that guy's case I'd call his pick-playing into question. He plays a bass as though it were a guitar. What the hell's the point in that?