You could surely find recommendations (should they exist) for unilateral imposition of rules in relation to recent epidemics like Ebola. After all your argument above was:

If this virus had come in some African country, they would have no problem in closing everything out - as anyone that understands tail risks would. But because it's China, then the recommendations for actions come after the evidence can not be hidden anymore. It is immoral.

Now I agree the coronavirus situation is without precedent, but if you're going to make assertions that they would have done X here while only doing Y there, you need to back it up with some evidence for your claims about X.