Although it looks like the no penalty thing is incorrect, I should point out that even if it is true the difference between having a penalty and having a smaller bonus is merely one of perception assuming the mechanics are adjusted for the change. It may sound better to do 4 damage with a +1 bonus then to do 8 damage with a -3 penalty, but in the end your still only doing 5 damage and your damage is still less then everyone else's.