That was the point of the action. Iran understands the hatred by the Israeli state for the Palestinian people (condoned, sometimes commended by western imperialist interests, particularly the British empire and the United States) only required provocation before Israel would commit atrocities that could be called a holocaust. So the Iranian intelligence state funded Hamas to cause trouble.
And they played Netanyahu the way Martin Luther King Jr. played US police departments.
The difference is, information from Palestine leaks out better now than it did throughout the 20th century, so the global public, especially in industrialized states, gets to look at it. We get to know what is happening and it is more frightening than we imagined.
The horror of the German holocaust, according to our own nations and their state departments, is not what was done, but to whom.