Because what they did was manly not respecting the tournament spirit and fairplay.
So they should be given the chance to show that they care it by playing again, while being given a meaningful punishment, like -1 to the result of their game, which is not too harsh.
So they should be given the chance to show that they care it by playing again, while being given a meaningful punishment, like -1 to the result of their game, which is not too harsh.