You are over-complicating simple advice that is perfectly reasonable and not extreme at all:
Assume stores will be closed. Plan accordingly. Be glad if things don't play out that way. No harm done. Not difficult. Not extreme. Not a big deal. Just reasonable assumptions and planning in the face of what could be a very serious event in human history.
Assume stores will be closed. Plan accordingly. Be glad if things don't play out that way. No harm done. Not difficult. Not extreme. Not a big deal. Just reasonable assumptions and planning in the face of what could be a very serious event in human history.