I'm aware that flu can kill. But it's death rate, by your stats, is .1%The flu this season alone has caused more than 20,000 deaths and last year more than 30,000 deaths with 35 million sick with it. This is a yearly issue and dangerous to similar population and as well should not be looked upon so lightly.
COVID kills more often. So, since they're already sick, but are otherwise healthy people under 50, it's relatively good news that its flu and not COVID.