I'm for the group that doesn't want full VO for the player character; it's simply not feasible to do it acceptably.

Right now, we have two feminine voice sets, and they are "30-ish Vaguely Posh British" and "30-ish Vaguely City British", and I'm pretty sure it's the same situation for male voices... and that's it - it's a super narrow band for voice set. To have a character voiced fully in either of those for all dialogue would be a major interruption and destruction of character; it would create an insurmountable degree of character dissonance, especially if you play the game more than once, or make more than one character. A character's in-game voice and sound, if present, constitutes a large part of their characterisation and the feel of the character - so in games with a customisable main character, such as a D&D game, the PC is almost always left unvoiced for this exact reason - they have efforts and bark sets, and you can usually choose from a wide selection of those, because they're much more straight forward to prepare a suitably broad spectrum of.

It's like Larian looked at the market and were told "Generally, games with full custom player characters don't give them full VA for everything..." and Larian cut them off there and said "Well WE'RE going to!!", and didn't bother to ever ask "why not?"

I'd like to see an extensive and broad spectrum of character voice options, encompassing many choices on the rough-refined spectrum, many choices on the young-old spectrum and many choices on the masculing-feminine spectrum; I want to be able to pick out a voice that sounds young, feminine and rustic or simplistic - I also want to be able to pick a voice that sounds like a masculine, elderly academy scholar and an androgynously delivered middle-aged fervent zealot.

Necessarily, in order to have that selection, these voice sets would be comprised of their effort and bark sets, to help give the feel of the character as you play, but wouldn't include full voicing for dialogue (wherein our character is presumed to voice, in the way we imagine, the line that we've just read and selected; we don't need to hear it enunciated on top of that). We also need to be able to choose to have no voicing at all, as an option amongst the others - this is actually important!

Now, if Larian had the time and resources to create full voice acting lines for every permutation of every line of character dialogue delivered in the game, and to do that for a satisfying number of voice sets - which is a massive number once you add it all up - that might be great... however, they Don't, and I honestly feel that anyone suggesting that they might is being disingenuous for the sake of the argument - they simply do not have the resources to do that, and doing full VA with just the two or three voice sets currently on display would be worse than simply having no voice acting at all.