My views about this are probably a little biased, but I'll give it a go. In the story the writer related how easy it was to shoot the button buck. Well we all know how easy any fawn is to fool. It wouldn't have mattered if he was 50 ft. up or on the ground. When I used to hunt from trees, I liked to be at around the 20 ft mark. Shot angle was good and I felt comfortable. The deer would wind me at times, but I didn't want to go higher. It still boils down to one main ingrediant, play the wind. I do think the point is, if you can shoot good from higher elevations and are comfortable with it, then go for it.
Wear a safety harness and let people know where you are hunting. I made a terrible mistake 6 years ago and took a bad fall. Literally blew the veins apart in both legs. I'm a lucky one, I still walk, kinda, and hunt, all from the ground. 10 ft.or 50ft. a fall can hurt or kill. Whatever a person decides, be careful. Jay