Back to fescue and links land,
IMHO, though fescue is the best links turf, but bents can play FF with little input "in the right climate" and "with the right paying customers".
I really do not think that any golf course is pure one grass or another. Many can be 90%+ one grass or another like in the PNW with poa annua. Even on a true links across the pond, there are many different grasses dependent upon the microclimate. Low areas will hold more water, high areas are drier and the grasses adapt. Every golf course has pockets of bent, poa, fescue, rye, and others as long as the macroclimate is compatible with the turf type.
As superintendent's manage for FF, they will change to the grasses that can adapt to FF. I will say that links golf is conditions and not necessarily turf type.
Troy