Still seems like listing anyone in the GD or GW lists is completely unnecessary. Seems to boil down to 2 categories of reader.
1) Those who aren't interested in who designed/built it, they just want to see the list or get ideas of where to try to play.
2) And those who do care, who will research the answer/info on their own anyways.
P.S. But then again who else even debates this topic other than this site and industry insiders?
The designers in question are of obvious importance, as GD's summary of the Top 100 and 200 breaks down the number of courses not only by the original architect, but redesigns by architect. For example, their list of the most original designs amongst the top 200 courses looks like this.
1. Tom Fazio = 33
2. Donald Ross = 14 (not including Interlachen)
3. Pete Dye = 12
4. A.W. Tillinghast = 11
5. Doak, RTJ and Raynor = 9 apiece
6. Coore and Crenshaw = 8
7. C.B. McDonald = 7
Their list of the most current redesigns in the Top 200 breaks down as follows.
1. Gil Hanse = 15
2. Rees Jones = 13
3. Tom Doak = 12
4. Tom Fazio = 11
5. Keith Foster = 6
6. Coore and Crenshaw = 5
Golf Digest wouldn't place the amount of emphasis on architectural design they do if there wasn't some type of perceived value to them, which goes back to Jeff's point about the importance of branding. Say what you will, but these names and others not listed here have cache and value. They're brands, whether you wish to admit or not, which is why many clubs and new facilities seek the active individuals on these lists out and why clubs built during the golden age of golf course architecture promote the now deceased original designer, as they realize it has a lot of weight and brand identity.
With the attrition of the number individuals in the U.S. playing golf, there is now a higher percentage of golf course aficionados than I think anyone realizes. There are lot of golfers that aren't as passionate about golf course architecture as those of us here, yet they appreciate and understand the value a name such as Ross, Tillinghast, McKenzie, McDonald Raynor, Park, Doak, Hanse, Fazio, Coore and Crenshaw, Foster, etc. lends to a course or club. I have friends who are golfers that know little of the history of golf course architecture that seek out playing Doak, Hanse and Coore and Crenshaw courses. Heck, you can make it easy on yourself and go to a place like Streamsong and play courses from each of them. LOL!
In summary, we no longer live in our own little golf course architecture incubator here on GCA. With the proliferation of YouTube and vloggers such as No Laying Up and Golfholics touting the virtues of the courses they feature/play and the architects behind them, there's a much broader understanding and appreciation of golf course architecture than at anytime in history. We just don't see it because of the limited range and scope this website has. However, go check out your average Golfholics or NLU video and you'll see there are anywhere from 30 - 40k views on average. That is a lot of eyeballs that may not otherwise know or care about golf course architecture and the individuals responsible for the great plethora of courses - both past and present - that we are blessed and fortunate to play.