They didn't have the gay-man-throwing scene from "The Horror of Party Beach", or even the use-the-gangleader-as-a-battering-ram scene. I demand a recount!
("The Horror of Party Beach" is the best of all MST3Ks, incidentally. This is a matter of scientific fact.)
For those who haven't seen it, the real kicker of the Space Mutiny clip is not just that the woman was killed off earlier in the movie. It's that the scene she was killed off in immediately preceded that one.