> We also haven't had a proper pandemic for a century, and then we had one.
I disagree. COVID-19 has certainly been the widest scales pandemic, but in addition to high profile localized pandemics (Ebola and Zika), we've had several smaller serious outbreaks (H1N1 killed between 200,000 and 500,000 people worldwide, and also overwhelmingly impacted younger people).
> Nukes aren't something you can do much about, but excluding then entirely from one's disaster planning feels like a mistake.
Nor would I suggest you should exclude it. But as the parent comment stated, the real problem in such as situation is social (restarting industrial systems), which isn't really something I can prepare for.