1. Pulling the ball may do harm to the players: In peak ball games, players usually use rackets to hit the ball, which can better control the direction and strength of the ball. If the ball is allowed to be pulled, the player may try to hit the ball with his hand or arm, which will increase the risk of injury.
2. Pulling the ball will destroy the fairness and competitiveness of the game: If the ball is allowed, players may be more inclined to use this incorrect hitting method to get the ball or score points, which will destroy the rules and order of the game.