I honestly think that the reasons are less deceptive than this.
It is not always clear what someone died from if they didnt get a test. The simple fact is 8,000 - 30,000 people die from the flu most years in the US, and we have had appx. 50,000 die from Covid-19. Well, what if some of the people that are thought to have died from the flu died from Covid-19, what if the other way around. It is very hard to really get these numbers clearly unless there was a test done, and in many cases there wasnt.
If I developed flu symptoms right now I am not sure I would bother with a test. Going out and making myself sicker just to get a result and a category doesnt seem worth it since neither has a treatment. If I was having trouble breathing I would of course go to the Hospital (to say I am high risk is an extreme understatement, I literally have almost everything going against me, reduced immune system due to multiple rounds of Chemo over 25 years, diabetic, overweight, had a heart attack 2 years ago, etc.) So lets say that I do get something and pass away, was it the flu (I had a flu shot of course) or Covid-19? Autopsy might tell I assume, but are we really doing autoposies at this point? The workload would be immense really just to create a number.
I think it is going to be very hard to get clear numbers out of this. The simple fact is that there just isnt enough testing yet, and there probably wont be for awhile. We know it is a crisis that we must find a vaccine / treatment for, but it will probably be very, very unclear how many people have had this for a long time (especially since some people get very minor symptoms)