In my mind I would rather the shout be replaced with a fancy (Star Wars again) Darth Vader force pull Han Solo pistol pinching trickery. The Draugr yell's bloody murder, poof your weapon flies toward him and be proceeds to paste seven bells out of you with your own sword. You switch to a sidearm, defeat the blighter and take your cherished property from his cold dead hands.
This is the best idea I've seen all week. It disarms you without the risk of losing your weapon to a hungry floor mesh and forces you to either use a back-up or resort to some crude draugr weapon lying on the floor.