The pilots’ union for American had *already* sued to halt the flights: It told its members to refuse the fly the route because of the risk.
By this point,
Critical: Air Canada, Air France, British Airways, Qatar, SAS had ALREADY suspended all their flights to and from China.
The ban that never happened occurred well AFTER January 30, when WHO declared the outbreak of COVID-19 "a public health emergency of international concern."
You, whoever, were.