The problem is the ball cannot fall into the bunker as the grass is to thick. A ball which is off line and heading toward a fairway bunker should wind up in the bunker, instead, the ball has to either land in the bunker or one hop into the bunker, after that, the rough gathers it up. I cannot believe that most architects forsee maintenance practices which would make a purposefully designed bunker nearly irrelevant. Sure, it can be difficult to play from the rough than the bunker, but is that the intention of the architect?