Maybe he's a manga reader and thus totally expected it? I was a manga reader, but luckily I stopped right before this encounter, and thus didn't see it coming. It was quite interesting and believable in the sense that the Screwhead was made so... academic and without malice that either way his way of fighting would have made sense.

It's funny how Black Star is a genius of fighting but his basic character makes him somewhat useless most of the time.