I think the war has been a lesson that the technological capacity isn't magic and US strike capability is not unlimited. Everyone assumed they were going to do a Venezuela or Ukraine "special military operation", decapitate the leadership, strike a few barracks and declare victory. Now the US leadership seem surprised that the Iranians are continuing to fight.
(The definitive film on insane US leadership is of course Dr Strangelove, a film that came out when Trump was 18 years old. The character of General Jack D Ripper is shown to be an insane conspiracy theorist babbling about commies and fluoride who starts a world-destroying nuclear war on his own initiative)