Plus, as dicusssed previously, it can be the case that holes go up and down quite a bit. When looking at overall elevation change it doesn't look to be bad because all the individual ascents and descents within holes (or even walks to tees) are not measured. It can make an incredible difference.
Ciao
Maybe we need to figure this the way it's done in bicycle riding/racing. The typical way to do it is to add up all the climbs to get total feet of climbing, or elevation gain.
For instance, on October 25, I rode 50 miles here in Mesa, AZ, almost all of it along irrigation canals. I use an app called Map My Ride and it calculates a bunch of stats, including elevation gain.
That whole ride was done with a minimum elevation of 1145 feet and a max of 1273 feet. But because it calculates elevation gain by adding up all the climbs, it shows that I had 522 feet of climbing.
In August I was in Sturgis, SD and did a 53-mile ride that had almost 2000 feet of climbing.
Since those rides started and ended at the same place, like a round of golf, only the elevation gained stat would give you any idea of how hard it was.