Ahhh, I see what you did there. Don't think for a second I missed it. But some of us have to work with what we have, and, as a kid I always dressed up for Halloween as Batman, not Spider-Man (note the hyphen there). Besides, it's supposed to make as little sense as possible.
Whoah. Did I just pull a George Lucas there? "It was intended to suck. It was a deliberate creative decision."