Eric,
I don't know the answer for certain, but if you look at the Red/Blue Topo map on the DA thread there are several references to the bunkers looking rectilinear and almost like a stained glass form. I think it was the nature of cutting out the bunkers in these type of areas that the illustrator of that topo was trying to convey. Very few typical bunker shapes out there, with alot of them being little carve outs like on both sides of this hole.
Strangely, this green actually does provide a real advantage to being on a particular side of the fairway depending upon the hole location...also, I hit the green out of one of the right bunkers once...wouldn't bet on it again.