How is it "full" voice acting if the playable character doesn't talk? Especially when it's not some build-your-own Fallout-style character.
Still counts as full voice acting, even if the main character doesn't talk at all or not much. This is nothing new to gaming. The silent protagonist doesn't bother me too much, but I can see when it gets annoying. The pull an example from the '90s, there's a horror game called
Enemy Zero. The main character, Laura, doesn't talk much. She does talk when you load a save, and she describes her current situation or predicament. Similar to gameplay and cutscenes, she only grunts, gasps or screams. It's justified in that game, because it's pointed out that she is shy, uncertain, and is waking up with little to no memory. There's a minimum cast, but everybody else talks. The game is basically
Alien. Something like that I still consider full voice acting.
At this point it's too weird for him not to talk, but it's also too weird for him to suddenly start talking after spending decades as a silent protagonist
I would not mind either way. If he did start talking, it would be a nice change of pace. It's kind of like when Isaac Clarke started talking, and some of those same people that were complaining about him not talking, all the sudden had a problem (Yahtzee). Or says he "talks too much".