I've already read this study. It states that, since it's a cousin of SARS, it has markers that are traceable to other viruses. What it doesn't state is that SARS-CoV-19 has been in humans for a long time, but that others like it share human & bat reservoirs, so that's quite the sensationalist title to promulgate. If nothing else, though, it's a good study to prove that it wasn't "engineered" by China.
I don’t think anyone serious was suggesting that. I have seen some people suggest that it may have been mistakenly released from the Wuhan institute of virology where coronaviruses are studied. Regardless, expect a large number of studies to come out of China this year suggesting ambiguous origins for the virus. Many Chinese researchers have a very high standard but research ethics there are much less universal than they are in the West. Even Chinese scientists I know have told me that.
