Let's be serious, but when you see these scenes where everyone else speaks to and with you, with real voices, and "you" just stand here like a... stone... well, it doesn't feel good...
Good point. The silent-protagonist trope predates games with full voiceover. Heck, it predates games with graphics. So now it can create cognitive dissonance. I didn't think of that.
Exactly: one point are text-based adventures, old school shooters (where everyone, at most, just cry and groan), visual novels or so on where there's no speech, another question are modern action-rpg or similar