What about southwest? They don't have a mileage program or they aren't a disaster like the rest of the industry?

They are not a disaster like the rest of the industry and their mileage program is not a substantial factor in their business.

They had a huge outage for over a week that left people stranded over xmas.

> More than 16,700 Southwest flights were canceled and 2 million passengers stranded between December 20 to 29, scuttling holiday plans and leaving mountains of unclaimed baggage nationwide.

Shit happens, while unfortunate it does not substantially affect their long term prospects.