I don't really understand all the drama related to air travel and meeting in general.
Guys, it is a respiratory disease ; a tough one, a nasty one, the one you do not want to catch but the principle of infection is the same as with other respiratory viruses : you mainly need exchange of droplets. If EVERYBODY wears at least a surgical mask or above (forget about the others) when less than 1.5m from another person, there is no effin way the virus can be spread around - be it in an aircraft or in a meeting room. With that in my mind we can at least recover short-medium haul as it is obvious that flying 10-12 hours on a LH flight and changing 2-3 times your face mask is highly uncomfortable, but that's fine, we will leave that for the moment we have hopefully an effective vaccine.