Joel,
I usually play a straight to slight fade/push tee shot and the 6th ALWAYS makes a draw or pull come out of my bag.
Although I agree that it is an odd shape bunker, I believe the design of the hole including the rough, treeline and slightly visable piece of the bunkers plays mental games with the golfer.
Even though the tee shot should be played well right of the bunker (think republican on this election day) and the tee box directs you away from the bunker, the edge of the fairway is to the center of the green, the treeline on the left is to the center of the green, and finally the upper edge of the bunker, being visable and white, draws my subconscious mind line up down the left-side of the fairway.
I think that the current line of the left edge of the rough is fair. Although your picture doesn't show it, there is a very generous rough line and landing area on the right-side of the fairway which gives the smart golfer an ample target away from the bunker.
Mike
Ps: I still find it hard to believe that at the last US Open at Olympic, the big hitters were bombing there drives to the bottom of the hill ...