Copy pasting it from this Twitter
Page but he successfully explains the gravity of the strike:
No new supreme leader elected today and if the Assembly of experts are dead, it's going to be pretty much impossible for the Islamic Republic to appropriately select a new supreme leader according to the Constitution.
According to the Constitution, the Assembly of experts chooses the new supreme leader.
The Assembly of experts are a elected position by the people of Iran. So should anything happen to a member of the Assembly of experts, there has to be an election. But in order to run you have to be vetted through the guardian council who are appointed by the supreme leader so if anything happens to them as well then you literally cannot appropriately. Have a peaceful transition of power within the confines of the Islamic Republic of Iran's Constitution.