I have no credibility to answer this question, and I don't even know what any of the words on that page mean, but is it possible that it was always the same virus and just documented under two different names? After all, pneumonia is a symptom of coronavirus, so wouldn't it make sense that people thought it was just the "Wuhan seafood market pneumonia virus" until later reports and information indicated it would actually be a "bat SARS-like coronavirus"?