KDC is NOT a survival game... But it's one of the most immersive game I played for the last years. It's obviously not because you can eat or drink. It's not about survival, it's about mecanics that increase immersion.
But anyway you're probably right. It's not important in a game "like this", because DoS is not immersive at all so BG3 don't have to be... That's what Larian can do and what DoS's fans want.