SARS-CoV1 didn't have a pool of 8 billion people to mutate in. It'll get less deadly as time goes by giving fuel to the 'it's just a flu' crowd, killing millions in the meantime and potentially mutating beyond the scope of currently attained immunity, god forbid.
There it’s just a flu crowd are the same people who call every little sniffle they get “the flu“. I’ve had the flu and I was out of it. I couldn’t even make it to the bathroom on my own.
the 'it's just the flu' crowd probably doesn't realize how many people actually die from flu complications, but then, i wouldn't expect them to, unfortunately. perception of freedom trumps science for them.