+1!
Another basic factor is the shot trajectory, the height of the ball curve. In this field, the Starters are quite lowly placed. This means that the shots will land short and roll a lot. Add ground elevation to this, and you see that precision shots at elevated greens, perhaps the flags tucked closely behind some obstacles, are almost impossible.
Take Oakmont #1 + 2 as examples.
@#1, you'll hardly ever stop the ball close to any flag because it rolls down the slope forever. you can pitch the third from above or below.
@#2 (left pin) there's no chance to play a second shot to the flag - it will drop into the bunker. Play green center, Par chance.