Ernest Jones was a great Golf Instructor. No question.
And his idea to "Swing the Clubhead" and let Centrifugal Force do all the work is simple and intuitively appealing. Under the watchful eye of a competent Instructor, that approach can yield spectacular results. In fact, Homer Kelley himself embraced the correct application of the concept in Chapter Five with his admonition to "Swing the Hands."
Unfortunately, Swinging the Clubhead from the Wrists is far different than Swinging the entire Golf Club with the Hands, and the average Golfer does not make the distinction. As a result, instead of the fine Golf Swings Mr. Jones envisioned, we continue to see the same Clubhead Swinging Wrist Bending that has plagued virtually all Golfers for centuries.