That means absolutely nothing. Death rate is the key number
CFR stands for case fatality rate
Study of 72,000 COVID-19 patients finds 2.3% death rate
www.cidrap.umn.edu
In comparison to SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome) coronaviruses, which were both identified in the past 20 years, COVID-19 is likely more highly transmissible but not as deadly, the researchers noted. (SARS had a CFR of 9.6%; MERS has a CFR of 34.4%.) And unlike SARS and MERS, hospital-based outbreaks do not seem to be hallmark of COVID-19 at this time.
Since the goal is reduction of deaths in general, the transmissible rate is VERY relevant to the broad discussion. You may be right about the specifically defined term "deadliness" or CFR, but a colloquial sense of "how likely am I to be killed by this outbreak at large", the two factors both need to be considered.