Taylor Fritz commented on a video from a college tournament according questions about win predictions in the United States in which a player stated that the ball that hit midcourt was actually out of bounds. Since the ball was passed without referees, it was considered an official decision.
In juniors, I always judged the lines in favor of the opponent, but if someone started to cheat, then that`s what I did - I shouted that some random ball was out, so that the opponent wouldn`t get excited anymore.
Perhaps the same thing is happening here? Who knows. . . But if the player just decided to do this, then it`s disgusting.