I think it was more of a "who is reputable".
People ask for a 4 wheel alignment as there are still some shops out there who chuck the heads on the front, set the toe and send it on the way without a concern for camber and castor. You and i know better, however people are just asking for the best alignment so they ask for a 4 wheel.
In this particular case Joel asked for a 4 wheel alignment as he knew the front and the rear needed setting up so all though the term used may not 100% correct, its a term everyone knows and understands.