Not worried.
My family and I live within our means and have no debt except for our mortgage. My wife is a teacher and that job will never go away. I would be sad to lose the free flights though!

I worked for SWA for 3 years and yes, it is a great place to be. I did not care for the pass benefits though. In the 3 years there, I was only able to travel international 4 times. In 3 years at 9E/NW, I have traveled international more than 15 times. I also like being able to purchase passes right from any ticket counter, even last minute. At SWA, I had to buy them through the pass bureau so I had to allow a few days to get them via Fedex. That may have changed now.

Good luck to everyone! I do not want to see anybody lose their job.