well he has a point that proper form has your hands in front, it gets your weight forward, not just racing stance but anything, if you ski with your hands flopping down at your sides chances are you're gonna get backseat and ski like a retard.  if you do it right, bringing your hands forward will bring your hips forward and you want to ski with your hips far forward, no matter how steezy you're trying to look, backseat skiing just looks terrible
but yes, short poles make you lean back more because you're planting around your boot instead of closer to the tip of your ski.  poles are about keeping your form in check and pivoting around them, at least that's what they were originally meant for