Puggo - Jar Jar's Yoda said:
Presumably the pile of dead stormtroopers at the hands of the good guys was considered a bit off-putting?
It was probably cut because Palpatine just told Luke he had set a trap. Why would you let a dozen guys get shot if you're expecting the Rebels to enter that way?
It's like that scene in Lethal Weapon where everyone is expecting Gary Busey's character to show up at Danny Glovers house yet they let those two cops get shot up for no reason.