Yeah, I remember reading this interview months ago. I just realized the article also had one of my comments, where I was basically making the same exact suggestion even back then.
What about it?
I'm all for day/night cycle and sincerely hope Larian will rethink this issue. I *hate* the idea that multiplayer interfering that much with creative decisions on a game the huge majority plays singleplayer. I think implementing such a cycle would be a great fit for BG3 given the passing of time would walk in lockstep with the narrative of ticking timebombs (tadpole + Gale's destruction orb) as well as tie into the D&D resting mechanics - which at present is a utter mess in my opinion. The situation we have now that are even permissive of long resting in between pockets of goblins while in the process of genociding their stronghold, destroys immersion - and breaks class balance on top of that. Day and night cycles, on the other hand, would aid immersion, facilitate more stealthy gameplay and variety.
It wouldn't really require full realistic activity cycles either. Just light a campfire, perhaps have someone resting, carry on as before. Even just a fatigue system or companions being more vocal on resting would be a significant improvement over what we have now.