That audio discrepency something I only noticed after throwing on both the Blu Ray and Harmy for kicks. I agree with Hal, the delayed audio makes the Stormtrooper’s speech sound very labored and as if he’s no longer in full control of his mind. It demonstrates the power of the Jedi in a show-not-tell kind of way.
Maybe, but I like the pauses in dialogue added to the Special Edition, as it helps the view read what is going on just like Luke is in the scene. The way it plays out in the original feels too rushed.