Airlines are engaged in hygiene theater, cleaning surfaces and promoting electrostatic spraying. I appreciate the cleanliness and hope it sticks around after the pandemic. But the CDC and other research suggests surfaces aren’t a key vector of Covid-19 spread.
Social distancing guidance was based on the idea that large respiratory droplets are the primary way that the virus spreads, and those droplets fall to the ground quickly, so staying six feet apart from others is a good prophylactic. Masks help with large droplets. However increasingly researchers are concerned with aerosolized spread or airborne transmission.