well that was absolutely stupid but I like it because it is stupid. Pretty much every authors ever always make the one who said it stupid and a weakling who died easily. Maybe it was just better to use an unharmable weakling to make them all surrender. You might think it is stupid but it is not like it is bad to no longer have school shooting. If the world is unfair then know that a creature who unfairly make everything fair by their own is also unfair, and it is up to you to change that fairness back to unfair if you are willing to.