I am the first to point out that I can be a little trigger happy on the uninstall button in general, but I uninstalled it after a few hours because I couldn't stand the awful voice acting anymore and I honestly couldn't be bothered to see if there was a "STFU in combat" option in the menus.
When the game was being beta tested, the uneven voice-acting was something me and other people pointed out, and at one time they were asking people about their opinions about the voice work of each character.
Sadly, and despite the EGS deal that "would allow them to create the game they wanted", they did nothing about the voice work featured in the game.
I saw, at a glimpse, that on a developer reply that
Wok posted earlier, that the Steam release (and free update on other platforms) added re-recorded VO, so maybe they finally improved things.