Not for nothing....deep breath here.....but......
While the good Major makes some salient points, I'd like to point out for those not aware - most of the o-4's time while assigned to any of the phases is administrative, whether it's Benning, Darby, Dahlonega, or Eglin. The NCO's and Tm OIC's (1st Lt's and Cpt's) are the ones who have majority of contact with the students than anyone. (And yes, I realize he's a former NCO)
And as such, your mission focus is (Was) to train, advise, mentor and evaluate.
And as a student, you will come in contact with who knows how many RI's during the course, that do exactly that. Teach them what needs to be done when you have a squad / section/ plt size element with a couple of unmotivated performers, leadership principles and how they apply and modified in strenuous situations, arduous environments and conditions. How leaders are supposed to communicate, the 5 w's, how to integrate the principles of patrolling into all facets of a mission, and a whole lot more, too long to list.
Yes, candidates are expected to know the basics of leadership before arriving, but believe me, once you've been through it, you've picked up more examples in leadership by learning, doing and association with some of the Army's finest, than you ever realized. The most important thing is you learn more about yourself, than anything else.
Sorry Major, but I for one, ain't seeing it. Your POV that is.