To me it seems like the lab escape story has only developed because of journalist brain. It's convenient if you'll only accept a narrative that involves blaming a human and not a natural system.
Anyway, the story doesn't seem to be developing in that direction:
https://www.cnn.com/2021/02/14/health/who-mission-china-intl...
I like how the WHO investigator calls the original patient "dull and normal".