The NFL and individual teams love the throwback uniforms because it's more merchandise for fans to buy. It might be confusing things in Pittsburgh, what with all the stripes.
Ben Roethlisberger threw a dart and nailed a ref right in the head with the ball in the first half of Sunday's game against the Redskins. Perhaps he just saw the stripes and thought he had a target. Maybe he was confused since Washington actually had a few men covered, something not happening much in this one.