Seems that your question boils down to the neuromuscular difference between the SVJ and sprinting. The obvious difference is the opportunity to accumulate momentum, sprint vs SVJ. It also appears that you are accusing Mr. Gaitlin of taking steroids. Both the SVJ and elite sprint performance are completely dependent on genetics. Strength helps both, to the limited extent possible, but a competitor has to work to improve any way he can. Sprinting responds to coaching and mechanics improvement, while the SVJ doesn't very much, and that's why the SVJ is a test of genetic capacity. To the extent that strength improves both, steroids do too. So, what?