Is one criterion of a Golden Age that its achievements capture the contemporary imagination when we are in the age itself?
The Golden Age of Sport--Ruth, Dempsey, Bobby Jones--was golden partly because personalities captured the public imagination. Same with air travel (1920's, 30's), Impressionism, gothic architecture, baseball in the 1950's, Pro football since Lombardi.
Golf's golden ages have been personality dependent--Jones, Hogan-Snead-Nelson, Palmer, Nicklaus-Watson-Trevino, Woods. Personality plus high achievement. In significant part the personalities made the courses classic because of what they achieved on them.
Golden ages also are times when there are huge amounts of second rate crap--golf in the 1920's was such a time, when many mediocre courses were built, some of which remain but many of which are gone. By that standard the current era is surely a golden age, as there have been a lot of ill-concieved and/or poorly executed courses.
Unfortunately the sport today is not capturing the broad public imagination, even with a personality as compelling as Tiger Woods on the marquee. Imagine where golf would be if Tiger had chosen investment banking, with golf as a sidelight, rather than the other way around.
With a very few exceptions, golf's most compelling events--the Open, the Ryder Cup, the British Open, the PGA, are not being played on the courses that can claim to be part of a new Golden Age. The powers-that-be don't take many of the most compelling events to the new claimants to golf course greatness. Surely that has to do in significant part to factors that don't relate to the quality of the newer courses (economics, lack of imagination by powers that be, geography), but it's also an indictment of the newer courses, which must not seem so compelling that players or public insist on playing events there.
Also, the most highly regarded of the newer courses (examples: the Bandon courses, which I've played, and Sand Hills, which I haven't) don't seem to be designed with the current specifications of modern pro tournament play in mind. They might not be chosen even if located on the outskirts of Chicago. Whether this is due to the lack of imagination of the tournament planners, or the maverick mentality of the architects/developers of these new courses, I don't know. I think you could run a hell of a pro tournament at Bandon, Oregon, but do the PGA and its sponsors want this to happen?
Given what the pros can do with modern equipment, are the best architects even trying to design to the pro game? Or to the gallery requirements of the Tour? Can this be a golden age only if professional play eventually anoints certain courses, or will it be a golden age if the best architects refuse to design to the pro game, and make great courses for the handicap golfer to play? The technology explosion may be requiring them to consider whether this is a choice they must make.