I think its engineered at the Wuhan Lab, but not as a bioweapon, rather for defensive immunology. A real bioweapon would be far more deadly and only an idiot would design an uncontrollable bioweapon that targeted your own people.
This was a huge stuff up by the Chinese government that is costing them dearly. When the choice is between conspiracy and incompetence, 90% of the time its incompetence.