exactly! deaths are a known quantity, infections that show up at doctors/hospitals are a known quantity, therefore testing is predominantly identifying the far greater number of folks that are immune or asymptomatic.
there are far greater people that are asymptomatic or immune than have been identified through testing (look at the data, they increase over the weeks exponentially, while infection/death rate increase more linearly). therefore the threat of infection is even smaller than what is shown here, making the chance of death far less than shown. these calculation are just from the "known" cases.