I agree with Kyleb. Don’t do something just because an elite athlete is told to do it by his strength coach. The coach has NO business claiming that this program is responsible for Peterson’s success (maybe he didn’t directly claim this but it was obviously inferred). Peterson was a beast already, and I bet you what he did to BECOME the physical beast that he was pre-vikings had nothing to do with 4 day a week workouts consisting of 20 exercises/workout and a high volume of machine training.
Be wary when a program doesn’t tell you the specific quantifiable results it has observed/achieved with its athletes. The closest this article gets (unless i missed something) is saying that he squatted “315lbs for reps” the day after breaking the single game rushing record. Even for 10 reps, 315 isn’t anywhere near “freaky” at a lean 6’1" 215-220lbs.
Just because an elite athlete happens to use it does not necessarily make it optimal for them, and even if it did, doesn’t necessarily make it optimal for a different elite player (even playing the same sport/position) and certainly not a non-elite player playing a different sport/position.