Sully,
The change was happening even back then. (circa 1920-1930's) Many architects wrote of of the fear that golf was going to lose it's meaning--about loss of spirit, fun and challlenge vs. Man's inborn need to make things easier.
From my research, I have found that with Golf's fervent growth during that time period, if you were good at golf, you were well-respected and trusted, thus the need to simplify to attain that same level of respect. Knowledge, being the palace of wisdom took a back seat to the ability at leaving one's mark, thus the death of common sense.
I've said this many times in conversations with Tom Paul and Uncle George, I think these guys knew we lost the war.... (meaning MacKenzie, MacDonald, Thomas, Tillinghast and Ross, as well as countless others who knew the soul of the sport) I do think it ultimately disheartened them as much as ill-health and poor finances did.
Count me as one that has had a lifetime of memories and have found great friends because of this SPORT. I even have found that I count myself as a sporting man because of all of it. But I look at everything back then and I just see just how pure it all was and how even back then it was being saturated by the very growth that has led us to where we're at today. I think of how everything has to be sold and packaged to me, despite the wonders of technology, as well as the magnificent abilities to manufacture this equipment. From a commercial aspect the Sport is as in much peril the same way Eisenhower warned of the military complex of these United States would surely one day ruin it's very existence. Maybe he figured that all out while at Augusta, playing golf or simply while fishing from the sancturary of the pond?