Arguably, the entire script is literary malpractice. đ
Lucas was stuck with the line Leia uttered in 1983, and he couldnât reconcile it? (Or change it for the SE?) Whether or not you liked ROTJ is beside the point. It was made first, and the prequels should fit the OT, not the other way around.
The biggest April Foolâs was all the misleading promotional stuff promising Vader in the suit doing something more interesting than what we actually got.