Pat, it seems to me that in modern design principles there is something of a conventional wisdom, or maybe better called standard practices, driven by modern circumstances. Some of that is driven by legal issues and some of that is marketing. Not only the skill level of higher handicappers is a consideration, but the age of the new "average" golfer might become more of a design issue.
With the appeal to the modern public, and their perceptions of what golf should be, they must have their cart paths and ammenities, which put a burden on the archies to design them, hide them, and spec them for material, etc. That takes a huge chunk of change that has its own ripple effect of how much to charge and what the demographic is of who can afford to play the courses often. The more design effort to provide ammenities and place and hide the paths, and if the path is continuous through the course, costs greatly.
Then there are the consdierations of designing for other demographics including handicapped folks, and the whole ADA thing. More costs, more design demands and architecture compromises.
Age of the target golf market will become an increasing thing, I think. With all the boomers getting into their 60s and being a pretty large segment of the public, the designs will have to appeal more to them, since they will be the largest group of paying public. Thus design wise, FWs designed to keep it rolling towards the middle, less forced carries, and just dumbing it down a bit.
Ironically, when us boomers are or recently were more competitive and strong, many were looking for the "championship" designs, most having 7000yard + tees. So conventional thinking was for the last 20 years that the design would have to orient towards more length. Now, the aging geezers may look more favorably on the 6300-6500 yard venues, and even shorter.
All of that stuff plays into design trends, I think. I'm not saying this is where all of GCA is going or has recently gone. All of what most of us like defies conventional wisdom and good design practices to appeal to wider public tastes and skills. But, if you are designing for commercial success and wide based public play, I think you compromise the design process to not do their best design, but their most marketably efficient design.