Does it have the same impact in 2024?
It’s worth considering context, the 1980s was the beginning of the end of the Cold War. The fear of nuclear war was very real.
The leader of the USSR for a time was Andropov who earned the nickname “the butcher of Budapest.” Ronald Regan was the US President and as Billy Connolly said, “this man has his finger on the nuclear button. He’s the same age as my grandfather and we can’t trust him with the TV remote.”
the inadequacy of Russian early warning systems (likely to wrongly interpret the number and trajectory of incoming missiles);
Yup. In 1983 – a year before Threads – there was a fault in the USSR’s early warning system which claimed to have detected ICBMs inbound from the US. The bloke in charge at the time suspected that they were false alarms because he reasoned there should be more of them. Had he not done so the USSR’s policy was immediate retaliatory strikes, the goal being “Mutually Assured Destruction.”
TL;DR – We came this -> <- far away from World War III by accident a year before Threads aired. We were already traumatised to start with.
And of course, as well as all of this going on, we were getting informational videos like this in TV advert breaks: https://www.youtube.com/watch?v=iroty5zwOVw