Happy Thanksgiving! From @mvmac and I, we'd like to thank all of you for being such awesome members. We have TST because we like golf and golfers, so we wish you and yours the very best today. Thank you!
I tend to just discount articles that lump a large number of people based on an assumption that they are all the same because they have this one characteristic (in this case high handicap) in common. Just isn't so. There a lot of reasons one can have a high handicap and it might not have a thing to do with short game. If you lying 5 just on the fringe all the time you're short game isn't going to get you to a single digit handicap. My non-professional advice it to keep statistics on your game and find out where you're losing the most strokes and work on that. If your tee/approach shots are costing you 5-6 strokes a game because they are in trouble or OB better spend more time improving your long game. As someone above said, you got to get close to the green before your short game helps.
I haven't seen it anywhere in the last 30 years where I've played. I remember seeing a guy do it in Ohio back in 1984. Courses are too crowed here in New England. They would have to dedicate a day or morning for this to be attempted.