Tough to say that's "exactly the right amount of deadly" for a pandemic when the Black Death and Spanish flu killed larger fractions of their total affected populations (in the latter case, of humans) [1].
[1] https://en.wikipedia.org/wiki/List_of_epidemics_and_pandemic...
Also, the window for spread with the ability to get on a plane and be on the other side of the world post infection, but pre symptoms is a "latter half of the 20th century" thing.
I'm on the border of three countries and you'd always see symptom reports go up in a region, sewage analyses go up, hospitalizations go up, and finally shortly before mortality started to show an increase (several weeks' lag from the moment of infection) they'd decide "guys, here's the statistics, we have to lock down now". Yeah great, now that everyone caught it they have to pretend being on the ball. And people still literally rioted against lockdowns. Or the masking thing, the resistance against filtering your breath... at this "too strong" level in your opinion, I don't see that the outcome was significantly different from "yolo protect yourself as much as you like but don't expect anyone else to be mindful"