In games where you can create your character from scratch (sex, skin colour, hair colour, background story, personality, name) then they should be left unvoiced. Everyone invents their unique characters for the game, would be annoying if he already had a set voice, or even if you have a selection of voices to choose from.
But this game already has the main character set, his sex, his name, his skin and hair, his background… only thing you have an influence here is his personality in some degree. The things you can choose for him, like should we burn down that village or is it too unethical for Henry? And even here, his personality might already be set - If he burns down the village, he might show great regret later in the game.
So there’s the difference. It’s more like Mass Effect and Alpha Protocol, although I’ve played neither. I’ve played Bioshock Infinite and I love the main character’s voice acting there, although it’s not RPG. Then there’s The Bard’s Tale, Call of Cthulhu, Remember Me, The Walking Dead telltale games, Max Payne games, GTA games, L.A. Noire, eeeeh (trying to remember games with voiced protagonists) All these games are pulls it off great! Even if they’re not RPG’s.
So yeah, this game is a lot like all those games, plus a lot of RPG aspects and a sandbox world!