What the cameras missed showing was the player walking away from the coach while he was trying to talk to him. What you saw was a coach not maintaining decorum. What I saw was a coach getting his message across to a player who just did something very stupid on the field, and followed it up by not listening. I don't care about the bad press or what you and a few social justice warriors think about it. It is not a grade school playground. It is not normal everyday interaction you see in the course of your everyday mundane life. It is football. You get yelled at if you do something dumb. And if you don't listen to him, you get your jersey grabbed.
And anyone viewing it on TV that doesn't get it? Turn off your TV, and polish your autographed picture of your favorite PC mouthpiece. Or get out your clarinet and try to play Rocky Top. Anyone who ever played football had a coach do that to them, or a teammate at least once during their playing days. It happens. There is no issue.