the Chinese need to stop making bio engineered viruses in labs and having poor standards around handling which release these super viruses into the wild.
The virus being a genetically engineered bio-weapon is pretty unlikely.
The idea stems from the fact that Wuhan is the site of China's first and so far only BSL-4 ("biosafety level 4") facility. Seems like a pretty big coincidence, right? Except... coronaviruses like the one in the current outbreak ("SARS-CoV-2") do not actually require a BSL-4 laboratory. BSL-4 is reserved for things like Ebola, Crimean-Congo fever or smallpox - viruses that are highly infectious and extremely lethal. SARS-CoV-2 fulfills the former requirement, but not the latter (while it is significantly more lethal than the average influenza strain, it's mostly the elderly that face a high risk of death from it).
CoViD-19 (the disease caused by SARS-CoV-2) is already the third major coronavirus pandemic in the new millennium, following SARS (apparently originating in bats) and MERS (transmitted to humans by camels, who in turn are assumed to have contracted it from bats). Basically, if there was one cave full of SARS-infected bats in the Chinese countryside, it stands to reason that there are more out there, infected with different strains of SARS (again, the virus is called SARS-CoV-2, because it is very closely related to SARS-CoV, which caused the SARS pandemic in 2002/2003). In fact, this seems almost guaranteed, considering that
screening programs in bats have already identified 400 different strains of coronavirus, at least some of which should have the potential to cause SARS-like symptoms in humans.
One should also keep in the mind that Wuhan is a city the size of freaking New York, so that's a lot of bats being eaten and a lot of opportunities for a virus to make the jump from bat to human.
Now, I am not going to completely rule out that the viruses escaped from a virology lab, but even then it would be more likely to be the result of the search for potential treatments for future SARS outbreaks, rather than a nefarious bioweapons programme (not that the Chinese government can't be plenty nefarious when it wants to).