They're looking for a way to save the live of people in respiratory distress, such as intensive care patient with Covid19 and damaged lungs.
Doctors and biology researchers need to move passed the ick factor sometimes to make progress. Joking about it is a good way to do that.
Before considering a ban, we should start by fairly taxing flights and burning of fossil fuel in general. That would include closing the loophole that makes plane ticket and plane fuel exempt of taxes. And of course a carbon tax.
That'd be probably enough to significantly reduce pollution from flights and data centers.