Why does Schindler get angry when the woman comes to his factory and refers it as a haven?

Schindler does not get angry when the woman refers to his factory as a haven. In fact, he is quite pleased. The woman is referring to the fact that Schindler's factory is a safe place for Jews to work, and Schindler is proud of this. He has put his own life at risk to protect his workers, and he is glad that they appreciate it.