SARS wasn't a massive global catastrophe, just like almost all flu epidemics aren't massive global catastrophes but for the opposite reason: it was too deadly,

SARS wasn't a massive global catastrophe, just like almost all flu epidemics aren't massive global catastrophes but for the opposite reason: it was too deadly, which limited its ability to spread and made it relatively easy to eradicate through contact tracing and testing. This kind of pandemic really does seem to be a 100-year event that requires a disease with a very special set of properties.