I think it's a case of good and better. I loved Boba's old voice. But having Jango and Boba and the backstory I think makes Boba Fett even better. I'm ok sacrificing the old boba fett for a deeper character, because he hasn't necessarily lost any of his mystery or anything. He's just got a triggering action in his youth. Hopefully, in ep3 he'll be a bad-arse recluse, just with an accent.

Anyway, it's a change I'm ok with. Best of all worlds would be just the OT, but if he wants to sync all 6 together, I'm ok with a voice change.