The issue at many of these courses like Kiawah and St Andrews is that the legend tees are as far back as they can go. The course mapping is done and there just aren't any other tees to use. Since WGT can't bring in the fairways to make the course tighter and it isn't possible to make it longer, the only solution is green speed and winds. In the case of Kiawah the tournament speed adds about 3 to 5 strokes to your round and the legend tees add a few more, my average was 59 and it is now 65 under the legend conditions. Frankly the variety of courses is what I like and a variety of holes on those courses. I don't want 4 par threes that are 230 yards long or 10 par fours that are all 495 yards to me that is boring, we need holes that are rewards for a good tee shot and a nice 9 iron to within 5 feet.
If it is the intent of WGT to increase the scores, the only real way to do this is to decrease the distance of the clubs and / or balls. I think that is the solution and I also think that is the long term solution on the PGA tour. A restricted flight ball that is sort of like what the softball teams went to years ago makes it so the courses are true to how they were designed. Harbour Town is a great 6900 yard course designed in 1969 with tight fairways and small greens. Back in the early 70's, a score of 2 or 3 under was a good winning score. Today the tees have been stretched back as far as possible and still scores of 12 to 15 under win the tournament.
The tight fairways don't matter when you can hit a 3 wood 275 down the middle. The 8th hole is about 475 and used to be played with a driver and 4 iron, today it is a 3 wood and 7 iron. HT has four par 3's that have been said to be the best four par 3's on any course in america and none of them are longer than 190, today that is a 7 or 8 iron for the pros. If you restrict their ball flight by 10%, it will make it not necessary to stretch course out to 8k yards and make good oler courses playable again.