The war will in the short term at least strengthen the regime. It is doing nothing to destroy the well planned structure and depth of it. Any offensive that would achieve this would require land forces and international cooperation for a sustained period, which not even the US has the appetite for.
It has demonstrated to the Iranian regime how easily they can close the Strait of Hormuz. They endure the current attacks, lose all their drone and missile and nuclear capability and all they need is a few fishing boats and some really low tech mines and world economy held to ransom as they've closed the Strait.
Before Trűmp/Netanyahu the idea was just part of a theoretical strategy by the Iranian regime. Now Trūmp/Netanyahu have shown Iran just how much power they have (easy, cheap and who is ever going to monitor a few fishing boats and some low tech mines being put together in a few garden sheds).
Trümp/Netanyahu have given Iran much more power then they had just a month ago (or made them realise they really have such power).