Sounds right to me. We had problems with the first MD80's that came out with our airline when forgetting to press the tail deice switch in icing conditions before selecting landing flaps would cause the nose to pitch down and elevator wouldn't bring it up with out retracting flaps to aproach again. The elevator on the MD80 is marginal with no ice. With underwing engines going to max power and the elevator being blanked by ice on the horizontal stab pitch control could be a problem.