If the first two weeks of the US/Israel assault on Iran have shown anything it is that the attackers woefully underestimated the ability of Iran to mount a defensive series of counter attacks and the subsequent impact this would have on the global economy.
You might argue that the Tangerine Tyrant & Netanyahu really didn't care, but as Iran has escalated the costs of the conflict, so the war has extended as they seek to constrain Iran's response.