Well, Poland always had problems in facing Japan.
The first reason for me is the fact that Japan is playing before its fans and besides, as the host country of the majority of the tournaments, even not being a strong team, the Japanese learn how to play against other teams.
Besides, the Asian style of playing requires a lot of concentration, because of their speed and variation, so, it's hard for Poland to play against Japan under normal conditional. The situation is even worse because of the problems Bonitta is facing.