PTSD? Seriously?
Those who need to fly will still be travelling. That's not many. The reality is that flying is a discretionary pursuit for the majority. And that's the underlying truth of the whole business. Many of those who don't simply don't want to take the risk of infection or imposed bureacacy (domestic or international) or other uncertainty will simply choose not to travel because they don't have to.
While we see offices running at low % occupancy and other forms of public transport running empty then people will hardly be buzzing to get into the air.
The risk for the industry is two fold - firstly that it takes a long time before people *want* to fly and secondly that the number who *want* to fly is significantly less after the hiatus (whether that be because of restrictions due to ongoing effects of the disease or reduced economic circumstances). If pasenger vilume doesn't recover and fares increase due to lack of volume thebn that may have a further knock on regarding how often people who want to fly can afford to fly.
Positives? Well we still have airlines - despite the massive pain the businesse and their staff are taking - they seem intent on surviving in some form. We are now well into the fifth month of this disaster and the big names still haven't capitulated to the economic storm.