Not only that, he was in the “C” group. The C group on southwest is the “oh shit I forgot to log on 24 hours in advance and now I am lucky I’m not sitting on the wings” group.
If he wanted a special seat, he could have paid the $10 to automatically be checked in or the $15 (I think) to automatically be in the A group and bump everyone else back one.
Those are very valuable things to know when you book on southwest, by the way, you can cheapy buy your way up in line.