Bill Starr would agree with the importance of the Power Clean. He actually used to program them first, before squats.
In the strongest shall survive, he basically says that if you can only do one lift, do power cleans.
And, based on my personal experience, power cleans were just as easy to learn as any other lift. I would say easier than some lifts because there is a low commitment level. If you screw up, you drop the weight, no harm no foul. You screw up on a bench press there is no where for the weight to go except down, on to you.
It takes a level of commitment to place a loaded barbell across your back and lower your body with the intention of hopefully coming back up.
Power clean, doesn't have that. You misfire, you ditch it. Simple as that.
"The fastest way to get strong muscles is also the fastest way to make them bigger. We know what works best to make them strong in the shortest time possible. If you want to get big, do the thing that makes them strong." - Marc Rippetoe
Zdravko Veselin Gaeta
I am not a powerlifter nor am I a bodybuilder. I just want to be big and strong.