Airbubba:
Southwest certainly has a traditional reputation as a raw data, round dial, hand flying, no VNAV, visual approach airline.
Seeing as how the crews are long since all trained to fly RNP AR approaches, they are at least trained to know better.
Doesn't seen like it would have been difficult at all for the PNF to retrieve the RNAV Runway 14 approach and used it as a back up to the visual.