If that is a reason for anyone to be a team captain, then... nothing more to say really
Did you watch the tournament in Berlin? It was Kubiak vs everyone else at times. The fact he's so emotional often carries the whole team. And he knows this, he does it on purpose. He f*cking cried after the final whistle when we beat the Germans to qualify for the Olympics because he was so exhausted emotionally. To be honest, I don't think Poland currently has a better team captain in ANY sport.