A few guys in my cycling group who are still on rim brakes will not take the really fun descents, even when it's completely dry. They don't trust them. Pad fade, overheating brake surfaces causing de-lamination and popping inner tubes.
So, sure, if all you're ever going to do is ride on a flat surface in dry conditions rim brakes are fine, but not better.
It's arguable rim brakes are slightly more aero. I like my bones unbroken, so I'll take the penalty.
I also find servicing hydraulic disc brakes to be more intuitive. Having to fiddle with the tension of rim brakes' mechanical cables to get them just right was always much more cumbersome to me.