An alternate Audio track would be cool with it in tact if possible. It’s not perfect, but it helps tie in Padme- this line change feels like the start of his transformation, drawing out memories.
I’ve always liked the first “No” as Vader picks up the Emperor. Obviously not the scream, but it feels like he’s finally broken through the fog. People that are fighting an alternate personality almost always access voice control first.
I, too, like the first “no”. Even though it felt like it really doesn’t belong, the idea of it works for me. It’s the 2nd, ROTS-style, bellowing “NOOOOO!!!” that totally ruins it.