This makes perfect sense, the crowd isn't suppose to make noises when the players perform that's a universal rule that works for every athlete competing for the game regardless of what the athletes themselves do during the course of an exchange during the effort...
It's just like in athletics for example, the crowd might not be authorized to escalade the grills (fantasist example) whilst you might see an athlete do what is prohibited to the crowd thus escalade it - the athlete is perfectly in his/her right to complain if she sees somebody doing it regardless of his/her actions herself ; it's an aggression to his/her world in which the crowd has only been given indirect authorization to watch but certainly not intervene in an abusive manner.
The difference is that the crowd will generally make noises to disturb the procedures of a point whilst the athletes will because of the efforts they produce... both are noise one might say but both noise are perceived in different manners when in action by the brain : one normal because of the effort produced, the other is an aggression and this not only to the player that complains.