My contention remains that the first one being the worst was precisely because it was a novel, acute upper respiratory infection and between old and infirm populations with literally 0 immune reaction (hence, novel), those die-offs are entirely expected, especially given that the government reaction was specifically to shelter old people in large groups.
Younger people who died almost exclusively had either immune compromise or some other comorbidity that would predispose them to a greater negative outcome and the ones who didn't could simply have had a perfectly normal, but uncommon, anomalous reaction (or lack of reaction) to the disease.
Couple that with massive over-reporting of to-the-minute world wide deaths when people are used to hearing about no deaths at all, and we get the lingering feeling that COVID's initial strain was massively worse. Maybe. I haven't met any young, healthy people who got infected early on and got better later who have insisted it was awful. At least, no hysterical ones. The people I knew then said "Ah, it was like a pretty bad flu, I guess."
Which, again, novel pathogen, that's expected. Takes time for your body to catch up. And then all future versions are easier to deal with. That's how infant mortality works. Remember to breast feed your kids, fellas. Personally.
