Your article states that 4/33 or roughly 12% shows signs of the disease.
Counter point: people dying today got infected weeks ago. This matters much more because of how fast this virus grows.
Deaths double due to corona virus in the US every 4 days or so. I am going to make the simplifying assumption that infections doubles at the same freuency. This could be criticised but I have no better number for it. Thus, if you want to complain about this choice, come up with a better number.
See: https://ourworldindata.org/cor...
Normally, you take between 19-61 days to die (infection is on day -5 death 14-56). Lets pick the lower number.
https://patient.info/news-and-...
Thus, people dying today were infected when 1/2^(19/4) or roughly 3% as many people were infected...
So in conclusion, your point that most shows no signs of the virus means that roughly 8 times more people than known has the disease, while mine means that the deaths are out of a 30 times smaller population than if you look at the current known infected.