After discussing this topic with more than twenty five fans, who attended the game, there is a simple analogy for the booing. Assume we are watching a football game, down by fifty, but we have, at least scored a point in more than 500 straight games. It is first down at the one yard line and the quarterback takes a knee four straight times. Game over. When the player went in for a layup and did not even attempt a three, that is why some booed.