We note that at no time, not even in March, while flights from China/Italy continued, have we seen documentation of Covid transmission on an airplane.
Side note: the toilets in airplane lavatories have flush buttons hidden behind the toilet lid. You have to close the lid to flush them.
So that route of transmission is greatly reduced on airplanes.
Meanwhile, entering, sitting for hours, and exiting in a large, tightly packed crowd with no ventilation to the outside apparently wasn’t a risk?