I always preferred the SNL skit/game show riff where they had to answer like a high school senior would, not with the real answer. I always expected that one to show up as a real game show concept one day.
I think the footprint for most gca was set by the Golden Age guys, the basics we still use and build upon today. Hard to believe they get too much credit, given how good they were.
Now, in some ways, I do see your point. I believe the current/modern trend towards historical study and analysis leads some to believe to overanalyze all the thought that might have gone into greens contours (when they probably were working hard to drain them, and later they settled, etc.). I also recall the Woody Allen bit where they are standing in line for a movie, debating the directors intent, and then said director walks up, says he was drunk that day, and an assistant handled that scene. Given how few site visits they could make in that slow moving era, assistants handled a lot of that stuff.
Of course, schedules were still schedules, and a lot of stuff got built once, just to keep things moving, with less architectural arm waving by the main guys as we have now.
In short, they certainly got the big picture, but I think many here give them far too much credit for little subtle nuances that they probably didn't think about nearly as much as we do now.