I'm based at a SWA hub, Denver. I commute on them frequently to/from work. A night visual approach two guys gooned up is not an indictment on the whole company and its procedures. If it was, they'd be landing at the wrong airport on a regular basis.
Find me a major airline that hasn't screwed the pooch despite procedures in place. If this was happening on a frequent basis you might have a leg to stand on, but it isn't.
Start with statistical evidence and not casual observations to make your point.