Neither was lost luggage or lousy food service.
Because there was no air traffic to speak of.
The fact is, no matter what problem we solve (like transferring large quantities of people over great distances in a fraction of the time), the more ubiquitous technology becomes, the more we find to complain about.
It’s in our nature to focus on the negative, to find what is out-of-place. It’s part of our default setting to think about the now instead of the past and future.
It’s easy to see, once one problem is solved (flight), two more pop in its place (airports, pilots, air traffic control, security…).
It’s up to us to choose whether we see the world as half full or half empty.