Peter,
Well, most of that is too deep, and maybe too simple at the same time.
However, for those who think business is just recently affecting golf, please recall that Toro celebrates its 100th anniversary this year, Donald Ross' memoirs were titled "Golf Has Never Failed Me" an excerpt from a passage about how Americans had made golf more businesslike, and that one of those great Golden Age, US Open courses - Merion - is a real estate course. And that is just to cite a few examples of what I consider simply a long standing trend, not some big difference between then and now.
For those lamenting the long gone naturalness of the Golden Age courses, while you have a point, please point me to any natural sand blow out that has the shape of a MacKenzie bunker? That was artistic interpretation of nature, and the point was to get away from trench and boxy bunkers of the early 1900's. Sure, it recognized that there were no straight lines in nature, but substituted another kind of man made ridigness on its informality.
Lastly, I do agree with Peter that its more visual presentation rather than nature today, but based on what went before (a la the Mac bunkers) I blame TV for the most part. Golf is emulating the big screen with pretty cinematography over pure nature, and golf courses are perfect for "framing views for a second" as they might in a long shot on TV.
I also think a society trend towards understanding vs. strict justice in society has altered the nature of golf courses. As has the fact that life has gotten easier. You stole something? That doesn't deserve jail time, as you are a troubled youth. Bad result? Surely society is more to blame than the individual.
It all plays in. And, why not? I think we want our recreation in general to be easier than the work and life we use it to escape from. If we don't have to worry about starvation, etc. we are more likely to complain about taking four shots to get out of a bunker.
As far as the randomness, yeah, its less, but only because decades of experience have taught many that random doesn't really pay, as in you can predict which bunkers are going to see such few shots that they just aren't worth putting in and maintaining. If we ignored those hard truths in design, is golf really any better off?
Some of you might have seen Geoff Shacks piece today, riffing off a NYT article on the declining middle class. Basically, it says business has stopped pandering to the middle class, because they have stopped buying things. As it relates to golf, basically poorer folks don't play cheaper golf (probably doing that already) they quit. After decades of trending to a middle class game, it may be set to inch back towards a game for the rich only. (maybe top 20% of income, or so)
None of that bodes well for reducing the fine accompaniments of the current golf experience, but may bode towards fewer, but even finer golf "experiences" in the future. Again, the business side of golf will take it where it can make some money, because how many folks love golf enough to subsidize it continually?