IF the plane's nose is going left, you pull back a little more on the right reverse lever, IF YOU can't maintain aerodynamic or nosewheel control.
You have never done any landings on slippery runways? And I'm not talking about wet runways here.
What you just said was a setup for loss of control on a slippery runway in a MD 80. If the nose is going left, there is a fair chance your tail is going right.
Go ahead, pull more on the right reverser in direct contradiction with MD and now, Boeings recommendation.
MD drivers know what will happen, you don't.