How is this more elaborate than an actual clock ticking in the background? If daytime is dictated by resting, all of the multiplayer-realtime-turnbased problems aren't even an issue anymore. And as you said, agreeing on a rest is already in the game. So you wouln't even need to add that, it's already there.

I know Larian has said they won't do it. But I will voice my opinion on the issue anyway because if I don't, I have no right to complain afterwards.