Sixty percent of all human pathogens orginate in animals species. It's nothing unusual.
Would worrying help?
It's not even the virus that is the concern anymore, it's the associated panic. I caught a train through Box Hill last week in Victoria. This has the highest population of Chinese residents in Victoria. As the train approached Box Hill, people started putting on face masks. Box Hill is a busy city with a major hospital and it is like a ghost town. It was eerie. There is a major shortage here of face masks, hand sanitiser, etc.. even to the point where medical professionals are now struggling to get supplies.
This strain of coronavirus has a higher than usual rate of pneumonia. In the elderly and immune compromised, this is a problem. I kind of agree that this is similar to a bad flu, but the reaction to this in China and amongst Chinese citizens in other countries would suggest that there is something a bit more sinister involved with this strain.