Erik,
Yes, I think we would all be surprised at who gets in bunkers. After we redid the Champions Course at La Costa, I have played with press, hacks, and women, including my wife. I found that fw bunkers designed to challenge the 290 back tee shot did in fact challenge the D players, only it was on their second (or third) shot.
Since then, I have been very judicious in my use of sand bunkers. After a brief infatuation with the so called "fore bunkers" and other variations of random bunkering, I have cut my total bunkering square footage from 100,000-120,000 SF per course about in half.