A few kickers:
SARS - CoV - 2 is more contagious than "the flu" . It spreads quicker . It kills quicker . And we have NO medicine, and NO Vaccine for it .
I mean, what do people think would happen every "flu season" if there were no medicine and vaccine(s) available against "the flu" ?
that doesn't really answer to the post you quote, right?
For example @Ian Skippy reported Covid-19 like symptoms, but he didn't went to the hospital, he never got tested so it's not a reported case. Not a negative, not a positive.
Like him could be millions of Europeans
The fact is we cant really tell how much worse Covid-19 it is. Not without mass testing.
We can only say it's worse.