True. What I thought was interesting was reading about how the government breaks down who's critical to keeping the country running and who's not. Sort of like looking at the entire country as a program and trying to think through the effect of each part. An interesting thought exercise, though hopefully it's never put to the test.
Funny there's no mention of tech support for all those critical industries, but maybe they're just assumed to be included in each industry (banking/ health/ etc) and not specifically mentioned.