Sorry Phil, you lost me. For most, the course identified the better players. Usually the higher seeds won, or the lower seed who was climbing in the rankings. I think hole locations helped. It identified players who had the better strategy and were in control of their game.
You should learn something from every round of golf, both from the good and the bad, from the course, from yourself, your opponent or playing companion. Not so much as finding out what tiny part of your swing was wrong.
If Phil was responding to a question or prompt about the hole locations or just making a statement of fact, I don't have a problem with Mickelson's comments. But if it was a complaint, he isn't learning. And that is a sad thing.