A couple of months ago, I would have immediately dismissed a notion like this and labeled it a nutter theory.

Too many actions by the Chinese have come to light, though, and it's a very real possibility.

I don't think they intentionally released it from the lab, I think that part was accidental.

But isolating that whole province from the rest of the country while allowing international air travel? And then angrily condemn Trump for banning flights from China?

No, that's a bridge too far. They wanted everyone to enjoy this bug so that there wasn't any advantage gained during the inbound plague.