WGT is pretty realistic in many ways, but one thing that is off is the bunkers: Especially fairway bunkers. Apart from BPB, you almost always get 30/40, with the occasional 40/50 (in greenside bunkers). In real life, you get fried eggs, you get balls that are sitting up ... you get lies that are between 0 and 30/40 and more than 40/50 -- around the green. How hard could it be to vary the lies more? In real life you never know what you'll get; it should be the same here.
The fairway bunker lies on WGT are completely wrong. In real golf, the ball usually buries partway in greenside bunkers because you're hitting high trajectory shots and the ball is coming down at a steep angle. When you hit into fairway bunkers you're almost always hitting a driver or another low-lofted club, so the ball comes in at a low angle, often on a roll; so the ball usually sits up, the lie is clean and you can 'pick' the ball out. You certainly don't get 30/40 lies that allow shots of only 100 or so yards.
In other words, you should be able to hit out of most fairway bunkers like you can out of the waste bunkers at Kiawah where you get 15/20 lies that take a little distance off and require a clean hit, but nothing more. Maybe I'm wrong, but I can't see how it would be hard for WGT to change the parameters ... or at least fix it on future courses.
So I think, for greenside bunkers -- which aren't bad now -- there should be more variety. Some 25/30 lies, some 20/25s that allow you to get some spin -- and some worse lies too, 60/70. Ideally, the lie you get would partly depend on the shot you hit. A full 60 degree wedge that comes straight down would leave your ball buried, but a 4 iron that bounces in would probably leave you a cleaner lie. The fairway bunkers should be mostly somewhere between 10-30 and allow, often, close to full yardages on, say, mid-irons -- if WGT really wants to be realistic.