I would bet that the airport was left open for Party Members and their families to escape. Who else would have been wealthy enough to fly international?.....................
Some pigs are more equal than others.
I saw my first COVID patient, a woman from Wuhan, in the US on January 23, 2020. She lived locally but had gone home for the holidays.
She was in Wuhan December 25 and 26, 2019, and she was well aware that something very serious was going on at the time she was there.