Yeah I understand. All I can say is what I said, that I think perhaps a small measure of trust is in order. If not in Grimes' VO talent, then in CDPR's production talent.I have all the musical respect for Grimes...but with regard to VOs...I dunno. I've seen so many bad examples, It seems a bit rash to put her in the cast.
I don't believe they've had a bad voice actor in the entire Witcher series. There may be a couple examples, but I can't think of any off the top of my head (which means they didn't stand out as particularly bad to me). I don't think they're going to start making such critical mistakes at this point, especially not for someone who appears to be a major character.