While the KoR lines work in a specific scene sense, I’m not sure if they will blend into the movie very well. Right now we have a silent group of evildoers and I think that voices have the chance to ruin certain scenes.
What immediately comes to mind is the scenes on Exegol where the focus of the scenes we recorded lines for are on Palpatine’s monologue to Rey and Ben taking up his grandfather’s saber.
I’m just not sure that it will fit in the context of the film as a whole. We shall see