Vinnie,
You've identified part of your answer. Resources , both intellectual and financial, are possessed in abundant qualities there. Pine Valley has a history of fabulous superintendents over the years , in my time beginning with Eb Steiniger. You also have to give great credit to enlightened patriarchs like Ernie Ransome , who hired a real maverick named Dick Bator in the late 70's who thru force of will and an incredible knowledge of poa annua set many of the turf mamagement programs that remain today in motion. His successor Pat Gertner and current steward Rick Christian are outstanding superintendents in their own right , and no doubt would credit Bator for laying a strong groundwork for their success.
Rutgers , Penn State and U.Mass have all supplied many quality employees to the maintenance staff , as working here is akin to going to Wharton Business , or say Princeton. Lots of quality at all levels of this staff and they watch for the first sign of disease, and control the H2O!!!!
Pin Valley drains remarkably well, and the sandy soil certainly helps. Years ago they cut holes (windrows) in the pines that line the fairways, akin to firebreaks , to help air circulation. There are more than a few well placed fans hidden around the greens., though you almost never hear them in action.
That's a start on why. I also would surmise the lack of cart traffic help the fairways immensely, not to mention all the co2 the caddies spew out daily lol!