I think that this practice of sending the basses without their set up ready is more habitual than it seems, not only from this luthier, I have seen other luthiers who send the instruments without their set up ready, I think it is because this way each person can configure to their needs and preferences with a nearby luthier but I'm not sure if that's why it comes like this, I'm assuming, maybe I'm wrong.
Definitely not for an instrument you order from a real luthier. Unless you’re buying some plywood factory bass from China it should arrive exactly to your specs (string spacing, fingerboard arching, nut width etc)... all of those things can be incredibly expensive to re-do if not done correctly the first time.