I think the point is we haven't suffered a real global conflict in our lifetimes. We forget. Reliance in satellites and other tech is not a smart move. Even now as I write this there is 2800kg of mass aiming for each other 991 km above us. https://twitter.com/LeoLabs_Space/status/1316147305125490694 That is the sweet spot for LEO's So a catastrophe is more than possible these days. We cannot disregard x-class solar storms either as we haven't been tested in any meaningful way since the satellite age started. Just think about how easily we will be affected if we lose a small percentage of GPS satellites. The majority of communications, banking and transportation relies on the timing from these satellites. I forgot who said it but it was something to the effect that ww4 would be fought with sticks and stones. So it will be up to us hams to communicate it these these situations. You should have one set of equipment stored in EMP proof enclosures. That would protect it in a Carrington style event also. It will never happen till it does and an ounce of prevention is worth a pound of cure. It's good to see the Military is discussing this.