A 1000 person test case was ran in isolation and they found this disease to not be very deathly, and this population was skewed toward the elderly.
Half the world’s population lives in a 2 hour flight away from Wuhan, and even without testing, there have been no random spikes in deaths especially considering most of that world is significantly poorer and without proper healthcare infrastructure.
The tragedy here isn’t about the immediate health impacts, of which are low, but of the second and third order effects to society and the world.
That office cleaning night crew ain’t getting paid. New tax revenues to fund potential research at universities isn’t raised. Those with still less fashionable diseases, will have even less money for their cause.