In America we have always given sports figures a "free pass" to blow up in public and behave like 2 year olds having temper tantrums because they aren't getting their way.
A baseball players swing his bat against a dugout wall, a basketball player throws the ball into the stands, a bench clearing of two teams fighting on the field, coaches/managers screaming in the faces of referees or kicking dirt on their shoes, slinging hockey sticks at opposing players, throwing chairs, and lots of other things no sane parent would allow their child to get away with!
In fact I can't think of any other work environment where one could pull that kind of stuff and still have a job! Simply put we don't require sports figures to behave like (mature adults). We view their explosive tempers as evidence that they "hate to lose" and their "heart" is in the game. We applaud the fact that it's not all about the money. We want to believe they are determined to win (us) a championship. This allows the fans of the player/team to believe their behavior was "justifiable".
Unfortunately millions of children also witness the antics of grown men behaving this way and see that it is condoned by many as sports announcers side with the player or coach/manager. The subliminal message is violent anger shows that you "care". This is often used as the explanation for violent behavior in abusive relationships as well.