Just in the last few days, the main stream media has been reporting the possibility that this was engineered:
https://www.theguardian.com/world/2020/apr/14/covid-19-origin-lab-general-mark-milley

The chairman of the joint chiefs of staff, Gen Mark Milley:
“There’s a lot of rumour and speculation in a wide variety of media, blog sites, etc,” Milley told reporters at the Pentagon on Tuesday. “It should be no surprise to you that we’ve taken a keen interest in that, and we’ve had a lot of intelligence look at that. And I would just say at this point, it’s inconclusive, although the weight of evidence seems to indicate natural. But we don’t know for certain.”