oakmont has a similar setup on a par 5. same thing tho. have to hit the fairway that's on the screen. the right half is OB.
But it does cut off a significant amount of yards if can hit it.
I forget the tourney. maybe the US amateur. anyway earlier this year some players at Oakmont were cutting corners and playing different fairways. I made the point on the PGA page that obviously some had played WGT.
It's totally within the rules to play different fairways so they decided to do it. Helps that on the real course the whole fairway is in play. :)