Murphy’s law is that whatever can go wrong will. In our history we see the opposite. HaShem causes things to go right even against all earthly logic. Purim is the classic example.
If Murphy’s Law held true, the Nazis would have taken Palestine and destroyed all its Jews (one battle going the other way), or would have stayed in control a bit longer in Europe wiping out most survivors (against, almost happened, but HaShem intervened to prevent it). In the seder, we celebrate that Murphy’s law doesn’t apply to the Jews.