Some companies are, some are not. Many have been juicing their stock price with stock buybacks at the expense of cash reserves (see Boeing).

Boeing has nothing to do with the current situation and it's not really under any more pressure presently even if there is a temporary downturn.

That’s an odd assertion considering how much the airline industry is going to hurt for the next 6+ months. I’m sure both Boeing and Airbus will see a drop in orders as their customers teeter on the edge of bankruptcy.

Could be wrong, but my understanding is that the aircraft industry is supply not demand constrained.