I have to say, in persuit of cheaper airport operating costs, SWA does rather push the envelope in terms of the 'secondary' fields they prefer to operate from:
Islip, Long Island (v. short)
Orange County (ditto)
Midway (ditto)
Houston Hobby (short)
In addition, there seems to be a 'hurry, hurry' air to their ops, eg landing at ELP with large tailwinds to roll right up to the gate. Nothing illegal, but just pushing the envelope, it seems to me. It was just reported by NTSB that this jet landed with a wind from 090 (on rwy31, with contamination....)
Prudence, prudence.