Not saying that I sit there and scream instructions at my kid like you imagine.
But, I am saying that there can be limited, opportune moments when a player can get a small piece of information in a live game situation and then get an immense benefit by applying it in that situation. Game tape is one thing, but players learn a ton from trying new things in games and they don't always remember the game tape from two weeks ago.
A good coach will do that. I've not seen that coach often. If your kid isn't getting it at all from the coach, ever, absolute silence isn't the answer. I'd advocate giving your kid that little bit of key information just before going back to coach at half time, if convenient.
Example could be if he plays centerback and is holding a high line flat-footed when the other centerback steps up to make a tackle. At half time whistle-blow I wouldn't be against saying, quietly and privately, hey, when your other centerback steps up to make tackles, you have to be ready to drop and reform your line with the fullbacks in case the tackle is missed and the CAM makes a pass through that open space.
Crap coach will let 5 goals come through that way. 3 seconds with your kid in-game and they become better centerbacks for life.