The US also didn’t understand how much work had to be done to get their weapon onto an aircraft, etc - so the worst case scenario always turns out to be too bad to consider rationally (MAD)
Well we know he was wrong as his entire premise was based on war being inevitable - all the logic flows from that one wrong assumption.
Also trying to take out supposed capabilities before they are built - doesn't mean the Russia people are suddenly freed from communism. ( cf Iran ). Also there is a premise that it's somehow a one off event. When in reality you'd have to constantly monitor and potentially constantly strike ( cf Iran ).