I think my problem with a lot of Japanese VAs is that if they do high pitched sounds and moans it sounds like a child and like they are in pain to me. It is a bit hard to judge off a one second clip, but it still sounds to me like she is being hurt. Like, I know it is just a cultural difference, but for me that is a big turn off.
Regardless, though, the game is amazing without a VA right now, so if I don't like it, I can always mute it. This is more just wistful thinking of what I wish was in the game.