Hmm... That hasn't been my experience. The guys I shoot PRS with are super meticulous. Bullet pointing, neck turning, annealing, weight sorting, the whole nine yards. Common thought around these guys is that if you're in that weird position taking a shot, and you don't have your loads dialed you'll always wonder if if was you, or your load.
Regardless though, hats off to people with skills. I am pretty decent, but I learn or re-learn where I am weak in every match :). Sometimes it's my loads, most of the time, it's just me making dumb mistakes.