Peter,
There were several thousand golf courses built before, during and after the so-called "Golden Age" and the vast majority could hardly be identified as "classic" or a "masterpiece" - just as most painters from the Impressionist school do not have their works hanging in The Louvre.
The evolution of golf design is rather checkered - and like music (as much as art) - some stand more charming period piece than bonafide, foundational work that has stood the test of time - and spawned imitative efforts, more pastiche than groundbreaking. These "period pieces" have their own charm and appeal, without carrying the weighty burden of a pedestal in the Pantheon.
One could easily make the argument that nearly everything C.B. brought to America was derivative in nature - but just as every piece of music has classical symphonic elements, there is also a point of departure where these bedrock principles morph into something so far from the foundation as to be unrecognizable - from Beethoven to the Rolling Stones.
There have certainly been misguided forays in strange directions, but nutrition free pap - like Ted Robinson's "Aquatic Presentations" or vapid, death-by-rote dogshit like every Rees Jones course I've ever played - eventually give way to courses presenting a thoughtful enigma. The best golf holes present no obvious right or wrong answer, just a different question, depending on who is trying to solve the puzzle.
And once an artist (like Tom D., not to swell my friend's head) throws down the gauntlet and presents a riddle *even he* cannot definitively solve, that is the highest level of design achievement.
So, don't fuck with the master's sculpture, just because you lack patience and have not contemplated it long enough to decipher its eternal truths.
(the last line is a paraphrase from Prince Puckler, for those who have actually read Scotland's Gift)