Looking at the first picture, there appears to be a dune slack to the left meaning the whole area is low lying and prone to water problems and very possibly erosion... It appears sensible that they stabilised that area for a green...
Alex, the area you suggest might have worked but looking at the size of it they would have had to take those two near mounds down anyway and bearing in mind the orientation of the hole, they would have lost about 50 yards in length and not had the same sea backdrop...
Note - I'm guessing all this from the photos above only...
I'm with Philippe... Sometimes you gotta do what you gotta do...