Not true, there are several players known to take their grunts to another level. When I meant grunts it's not the regular grunting player that blows out steam out of the ball, in fact imo it can be worse, the grunts can actually affect the opponents gameplay which is basically cheating, some keep grunting until the opponent hits the ball towards them.
Still the intent is dubious unlike when you stare or something like that, because that is an attempt to get a reaction from the rival