Well, I, and this might just be me personally, have a harder time believing someone who says a scene is missing than one who says a scene is added. While a person who believes something's there who wasn't probably had some stimulus to provoke it (storybooks, novelizations, etc.), someone who claims that something is missing might have simply forgotten that scene. Hell, as I said the other day in another thread, the first two times I saw ROTS, I could have sworn there was never a wookiee battle. I wish I'd been right...