You can hide weakness and strengths of any player in any system, except kickers. You can either kick the ball or you can't. The punter is standing 10 yards behind everyone, all alone. And no one ever remembers good punts. They always remember the shanks and the times when the returner takes it back on you. It's always the punters fault that the gunner didn't tackle the guy 60 yards down field.
Imagine trying to throw a rocket down field 30 yards into a tire. Now imagine having to do it twice as far with your foot.