Correct, Covid-19 is not as bad as smallpox. But it's still bad. Focusing on fatality rates misses the infection rate. Two diseases with the same case fatality rate can kill widely different number of people if one is more infectious than the other. We have learned that SARS-CoV-2 is way more infectious than the flu, meaning that way more people are getting it. With way more cases, we have way more deaths. (And, of course, way more strain on the medical system.)