I got through about the first paragraph and stopped reading. "It tones the muscles of the upper body (especially the deltoids and to a lesser degree the chest and upper back) as well as the lower body (especially the calves and the hamstrings)."
Toned?
It isn't intense enough to compare running at a moderate pace. I've done a lot of rope jumping and it doesn't come close. It's pretty easy.
Even if the article is correct, running at 5.7 on a treadmill is almost walking. Try it yourself."