Sorry to hear about the course on Harris -- it is a beautiful spot. Hopefully the turf grows right through it, they would not have the manpower to clean off a bunch of sand drifts.
Thomas, yes indeed the bunkers at places like Sand Hills and Pacific Dunes do suffer from wind erosion, in serious volume. Out on the prairie it's possible to use soil cement during the winter months to keep it from going crazy, because you don't have to worry about golfers, but in year-round golf climates [Bandon or Barnbougle] it's that much more of a problem. Putting sand back in bunkers [or shoveling sand back from one side of the bunker to the other] is a significant part of their maintenance budgets.
Building such courses is also fraught with sand-storm issues. We built in Bandon during the winter months when the rain helps to keep the sand in place, but at Tara Iti in New Zealand we had several holes that had to be re-shaped between shaping and planting, because the wind made a mess of them before the irrigation could be installed and turned on.