It is probably a fantastic training tool. I have not had the priviledge to serve. Came of age at an awkward time and my father was dead set against it having served in WWII along with his brother and all of his classmates, my cousin in Vietnam, worried his sister to death etc. "Our family has served enough!".
But...in football we boxed during spring training. Taught aggression, help us overcome any fear of a blow, that sort of thing. Ramped up to a military setting where we're talking life and death, I would presume that bayonet training, and subsequent issue of same, would serve as a motivator to troops.
Spoken by a life-long civilian so take my thought for what they're worth.