Pat, flat fairways don't drain, never did, never will. Should have never been there in the first place. Ross and all knew it, when they could, they did something about it. Some of his Florida courses still don't drain, and its a wonder Seminole does (at least according to Pete Dye, a member who knows something about it)
So, yes, we build 2-4% drain slopes in most fairways today, if they don't naturally possess it. We also shape to control off site drainage that has proven over time to affect golf courses.
I would love to know the coward you are posting for, Pat. No, not really. His opinion is worth very little. Any trend in design over the last fifty years seemed right at the time, and then got so standard some folks started questioning it, and changed for the sake of doing something different. We aren't dumbed down, and we aren't butchers. We are simply responding to the needs of golf as it is played - and managed - now. We probably have a lot more to consider than any of the old guys, and manage to figure it out.