Bingowings said:

It would have made a refreshing change if Piett had rammed the Death Star with the Executor to save his fleet from the Emperor blowing up Endor.
A giant city sized dart cutting into the exposed (and now unshielded) unfinished side of the station would have been more unexpected than the Rebels blowing up shit again.

It would have looked good too and paved the way to peace talks.

Really? You prefer the simplicity of the first movie but then you want to break out of the clear black/white/bad/good scheme and introduce a twist like this? C'mon...