Being against the introduction of a DPS meter in the game is like saying "We shouldn't have knives or any potentially harmful object in our houses because the children might get hurt".

The parents (or the GMs in this case) just have to be careful and watch over their children so that nothing bad happens (which means, people that would use the DPS meter to insult/mock players who aren't performing that well should get reported and harshly punished by the GMs).