I don’t mind the narrator myself but I agree this refocused approach would be served better for a more dramatic opening and end credits.
Ideally the end credits theme would have a bit of Ahsoka and the clones’ themes. They aren’t only the core protagonists of the series, but also victims of the war. If you are considering Samuel Kim tracks I’d say you could add a mix of these two:
https://www.youtube.com/watch?v=HCTGo9RNVs8
https://www.youtube.com/watch?v=jrdRHO7ekU4