If it makes you feel any better, Poly, I was waiting for that scene too and was equally flabbergasted that they left it out. And it wasn't because I was hoping to get a glance of that carefully hidden forearm flesh either...really....
They cut so much out of the story that it left me wondering why they even bothered at all. I was incredulous that Molly wasn't in it at all - not even for Harry on parents day or whatever it was? That they left out Winky completely wasn't as shocking but, still, it annoyed me.