It is a heck of a weapon. A weapin of mass economic destruction. Low fatality rate, super high infection rate, lives for long time on surfaces. Don’t kill your enemies, make them poor and work for you.
The thing is I don’t think they were done perfecting it. It was truly an accident that it escaped, IMO. Two lab workers at the Wuhan Institute were jailed for selling lab animals for food on the black market. That is a fact.