This was some interesting stuff, and as you said nothing earth shattering. Much has changed about college football since I played, but the locker rooms not so much; Teams don't usually expose much of what goes on in the inner sanctum of the locker room to outsiders. It's something you learn early in your career, like discussing injuries. Players seldom comment negatively on their coach, just as coaches do not publicly humiliate players when they make mistakes.
All stakeholders are aware of the routine, which is why the guys who go to the transfer portal thank God and the university for the opportunity and say they made great relationships and had fond memories as they slam the door shut behind them. It's hard for fans who see the season in soundbites and for a few hours on game day to grasp the enormity of it or how the pieces connect over an entire season, year, or career.
We talk about "Coach Speak." To me this was "Player Speak." Your player sounded pretty diplomatic, appears to have a buy-in, and is cautiously optimistic.
My favorite is that he understood Gattis's O but not many others did. Good for him! And as you noted, the reason our players couldn't get it is because we haven't done a great job recruiting kids with football smarts. A few years ago, the hot topic was corners who couldn't turn on the ball, which is a skill most corners learn in high school, not still having a problem with three years into their careers.