When there's a clear risk to hurt someone in or outside the game area, suspension must happen, and a heavy one. I'm often irritated by referees giving yellow card for only shooting at a ball (Adriana Diaz) or CNT suspending WCQ for ditching a racket at table for 50 cm. It cannot hurt anyone.
But here it is a complete different matter. We had a player like that in my very 1st club in the late 80's, he threw a racket that landed only a few centimeters away from his opponent's head, the opposite team/club of course filled a claim, and we were all agree that it was too much, we didn't search for any excuse: suspended for the rest of the season by the FFTT, as it happened in october he's been suspended for nearly a year cos' a season in France goes from September 1st to August 31st the year after.