I think a lot of people aren't reading the article.
Honestly, it seems pretty reasonable. He can still play, he just can't score if he's already scored three times and his team is 14 points ahead. They can still pass to someone else, he can still score, he just can't solely dominate every game. And the moment someone kicks a field goal, he can score again. If he's really that good, I don't doubt the important lesson to learn is not to take the other members of his team for granted.
He isn't really expanding his skills in any way to just keep scoring over and over while the opposing team tries to stop him. And it hurts the other players on both teams; the players on the opposite team stop enjoying the game as their opponents gain a lead they can never hope to catch, and the players on his own never do anything but give him the ball and let him carry them.
Further, he seems okay with it, and he will only fall under the rule for one more year.
It's a freaking youth football league, people. For eleven-year-olds. There are things more important to learn at that point than "and someone who's naturally good is just going to inevitably crush you no matter how hard you work, so don't even try."