I'm good with these secret scrimmages remaining secret because it totally frees both coaching staffs to look at and work on things of concern to them, without the pressure to "prove" anything to boosters and the fanbase at home or post a score or team stats.
Just as much, it frees players to be placed in uncomfortable or unfavorable matchups by their coaches, without that third eye distraction of "I'm looking incompetent" to anyone who sees this.
I presume the opposing coaches negotiate things like "teaching timeouts" and maybe even coordinated substitutions, like "I want to see my 23 going up against your 17 for a few possessions."
Oh. And just to feed the rumor mill about which very good secret team we scrimmaged... Atlanta is one of the few airports that has direct, off-grid flights to-and-from Area 51.
I'm not sayin'... I'm just sayin'.