Jeffrey Sachs, a professor at Columbia University, said that after the United States and Israel launched a sneak attack on Iran, only three countries around the world condemned the US and Israel. Surprisingly, many countries even condemned Iran instead.
The announcement of the death of the world Muslim leader and the way Jewish newspapers are reporting it is purely a form of psychological warfare.
They are simply doing this to trigger him to try showing up and which in turn will give them an opportunity to trace and realize his unknown location.
Alternatively, it could be aimed at demoralizing the Iranian military. This (and which we are aware of) tactic has been used since the time of the Prophets: during conflicts, it was common to claim that Muslim heroes had fallen on the battlefield in order to discourage the remaining unit.
اللَّهُمَّ أَعِزَّ الإِسْلَامَ وَالْمُسْلِمِينَ.