The problem is that since the average time between infection and death (if it happens) is 23.5 days, you need to compare deaths to what the case count was 23.5 days ago. *IF* cases have been doubling every 3 days, as they have in some states, then that 0.004% becomes 0.9% - 9 times as high as the flu.
The average time is not turning out to be 23 days