So, one quick shot throughout three movies? That barely registers even if you count it.
Is the PT stuff in 04 and 11 really that much more, though?
No. Nooooooooooooo!
Oh, wait…
I don’t really consider that a PT thing. It’s just the same word. The situation and intonation are completely different.
Try to think of any other fathomable reason to add that, except that Vader said it exactly the same way in Sith. And you’re right, it is a completely different situation, which is part of what makes it extra stupid.