There are certainly many people who are not travelling because they don't feel safe right now.
That very possibly; but I think a larger factor is the idea of wearing a face mask for what will amount, even on a flight of two hours, somewhere around 4-5 hours by the time you've checked in gone through security and then been processed through your destination airport. Personally, I wouldn't suffer that for the sake of 2 weeks in the sun. I perfectly well accept that many may think it's a small price to pay.