Why do people have such an issue with Temeura Morrissons dub in ESB? Boba is literally a clone of Jango, of course he's going to sound the same, just so happened that George most likely hadn't figured out the clone backstory and casting at that point. It'd be worse if he'd just left the original voice whilst having Boba be a clone of Jango.
I agree that is a rather minor change but it's just one more example of GL *****ing with the content of what many of us consider to be cinematic classics. Updating space battle visuals such that they look good on modern screens is one thing, but adding scenes (Jabba talking with Han in ANH ), replacing actors (Ghost Anakin in ROTJ), Greedo shooting first, etc., etc. - none of these did ANYTHING to enhance the quality of the original trilogy. Now if he did these strictly as part of "Director's Cuts" while still making the originals available to us I'd have no problem, but he's basically wiped them from existence, which was a total d*ck move.