Craig Sweet,
I've always maintained that their are golf clubs that are icons in American golf, be they Oakmont, Pine Valley, CPC or other clubs.
Many clubs imitate what they see these icons doing.
Forget the PGA Tour Pros, the real benefit would be if more and more clubs undertook this practice.
Years ago, I think PV raked their bunkers periodically, not daily. That's great for keeping costs down and presenting a "TRUE" hazard.
Hopefully the concept of returning bunkers to their architectural intent, as hazards, will take hold through maintainance practices when viewers see and hear what Muirfield is doing this week.