I will say this, my 2 daughters started hitting like this in Softball, and they were both 1st team all conference in College, another girl I coached was Schutt NCAA player of the year. I love the drill with the pipe, I will be using it when I am doing lessons, everyone has their own philosophy, I built mine by listening to people.
With all due respect, maybe aside from the initial movement he demonstrated to illustrate to hitters to keep the bat head up rather than dumping it behind the head at load, none of these drills are tied to the actual science of hitting.
