I actually like the unvoiced main character because it means we can have more dialogue options/opportunity for role playing. Example: Dragon Age: Origins versus Dragon Age: Inquisition. In DA:O your main character could be whoever you wanted them to be and you almost always had a ton of dialogue options to fit the mood and personality of the character you created. In Inquisition, the character was voiced but you generally only got 2-4 options, and sometimes the voicing of those options was the same line with one element changed. That said, I liked Inquisition's main character, but it was Bioware's character--not mine. (In the same turn, I hated all three personality constructs of Hawk from DA:II)
Given that this game is all about the role playing, I think voiceless grants the player a great deal more flexibility.
Pretty much this. I found the voice packs used in the older D&D series more than sufficient and they make for more extensive and flexible roleplaying dialogues. It's easier to add or allter existing dialogues when they're not voiced. It also makes the gap between future mods and the OC less jarring. And last but not least, I find that the tone of voice acting in modern RPGs often conflicts with how I think my character would have voiced this dialogue in my head.
