It can be a major pandemic and still almost everyone will survive it. If it kills 1% that would be huge, but 99% of you will still be here.
In addition it appears that something like 20% of those infected suffer severe, crippling lung damage.
That's not to mention all the economic damage, which in turn will have more adverse health consequences.
We really should not be taking this lightly, even if a lot less people get infected and the mortality rate isn't quite that high it could still be devastating.