For singleplayer, absolutely!
For multiplayer that sounds like it will be gamey/cheesy. Like, player A holds off giving an answer to the drow priestess for 3 minutes straight just for the persuasion-cavalry to arrive to flex their charisma all over the villain.
"Party-faces" always seem to me like I am actually playing as a mafia clan or street gang of murderhobos. Everyone is a (brutal or not) murderer in one way or another EXCEPT that one guy who is "clean" and suave (he only kills when he can get away with it/only kills "bad guys"). Like regular people would not eventually find out or the party's reputation would not precede them at some (high-level) point, and people woudln't keep the Flaming Fist on speed dial, grabbing their cell phone scroll of message tight in their back pocket whenever you're within a 1-mile radius.
A forced mechanic in MP would instantly break my immersion and turn me off the whole conversation system, when it does not actually matter what your roll because of loaded dice (hopefully forever optional) and +6 bonuses from optimal character building due to "party-face" characters teleporting across the map or interjecting themselves into conversations they have no business being in.
tl;dr a forced "face-character" option in MP would turn MP into an even bigger optimization-fest than it already is, please make it optional.
Edit: voting on conversation outcomes is probably the ONE feature I miss from Divinity OS (1)
Last edited by Sarevok Jr.; 24/04/21 09:03 PM.