I haven't had the pleasure of playing or seeing PD. And, the only aspect of the discussion I can relate to is the long running comments on the playability of the rough. I have followed Wild Horses years and progress of managing the 'wooga' with annual burning of front 9 in spring, back 9 in fall, etc. Apparently, PD does a burn now and then, is that correct? Of course with the burn, as I understand it, the conditions are nice very soon after new green plants come in rather fast. But, it doesn't take long for the undergrowth of bluegrasses to really thicken to the point where areas become unplayable if you find it, and of course the auto reload. Because of the sandy soil and when water spray doesn't drift to those areas at Wild Horse, it stays pretty playable, but the areas where irrigation spray dirfts, it gets too lush, quickly.
So, with that said, I have always wondered why some clever ag implement mechanic-designer collaborating with a prairie grass area golf superintendent doesn't try to invent or design a cultivation machine that can come in after a burn, and gouge out like a giant cross between a slice drum and core pulling drum, that could literally gouge up full scoops of both ground, turf-weed roots and scarify the ground in a manner that would keep regrowth very wispy. The spoils of the ground-rhizomes and stolen material would be designed to fling back into a collecting bin, and taken to a nearby pasture to be sprigged on the ground to regenerate good pasture forage. Maybe a light sprinkling of desirable wispy species of fescue or native seed could be spread in the scarified ground to outcompete the lush blue grasses...
I probably don't know what I'm talking about, but it just always seemed to me that some innovation along these lines would benefit many golf courses in this regard of keeping the rough-native areas ideally playable, while a fair penalty rather than a reload situation.