They do. But there’s a line between arbitrary and fair. One of the things players want most is for outcomes to not be random/arbitrary and for skill to be judged fairly. That good shots are rewarded and bad shots penalized. The game already has a lot of that baked in so no need to make it more so.

TPC Sawgrass is the closest to a perfect pro course (PGA National second I guess) since it was designed specifically for it. I think a course perfectly optimized for pro play would be very different from what most people would expect.