You, sir, are correct. This is a man made virus, and as such all predictability as to how it is going to mutate goes out the window.
Is there some overreaction? Yes indeed.
Overreaction is far better than no reaction.
I can tell you it scares the Hell out of me. I do not want to catch this thing at all.
Am I overreacting? Probably.
All I have to say is China is the unwashed a-hole of the Earth ;/