"Bring my shuttle" is simple, powerful and effective. It's an iron fist that don't need no stinking velvet glove of a sentence. The crew of Executor should always be prepared for Vader's arrival anyway, they ought not need to be alerted. But by far the worst sin of the SE (at least in that section of the movie) is that all those little additional "Hey look, kids! It's Vader, and he's traveling! Wow, isn't his shuttle pretty?" shots disturb the flow and interrupt the music, so there's about 74.26% less tension and urgency in the scene and less relief when the heroes escape.