All the invasive measures taken to counter the Wuhan-virus were from the beginning based on faulty data, as we never had an idea what percentage of the population was actually infected. Hence, any lethality estimates were inevitable exaggerated, as the deaths were only compared to the known, confirmed positive cases, while most people show little or no symptoms and therefore never made it into the statistic. The more we learn about the number of infections, the less different the lethality of this virus looks compared to other viruses we deal with every year.
https://spectator.us/stanford-study-suggests-coronavirus-more-widespread-realized/