Just for some perspective:
As you said for some perspective.... This does make a viscerally strong argument, and it serves as a good reminder to BE CAREFUL! But to be balanced, nobody can say for sure that SARS-2 will act like the Spanish flu and not like other outbreaks where there was no second wave. Ultimately no one knows for sure but He who knows all, and while He commands us to guard our lives exceedingly carefully, the Torah also allows for engaging in normative behavior despite the risks. Once again, reasonable people can and do disagree as to what the parameters and how to determine what that normative behavior includes.