Downplaying a tragedy like this is part of coping. You think of the worst that has happened in the past, compare this to that and realize it's not that bad and you can deal with it.
It's how I've come to deal with my lifelong tendency of catastrophizing and being completely overwhelmed.
I take it apart and deal with it. What do I have to do, what can I do and I do it.
Even with modern sanitation and medicine if pneumonic plague got going you'd still see a high death toll. Septicemic plague moves so fast that treatments have to begin within hours. And even with modern everything bubonic plague still will kill 15-20% of all infected.
And if the anti-vaxers have their way we'll be back to the bad old days of epidemics that make this look like a holiday jaunt to Canterbury. That's what Chaucer was writing about. A trip through the clean countryside to social distance from the black death in the city.
What about this guy? He kinda sounds more like a CON-MAN saying that he can cure the virus. What do you think lol?