It's one reason I cringe when anything needs service. These days, seems like a lot of people are so busy talking about how much they know there is no time to actually learn anything.
Wheel building is an artform of sorts,imo.
It's also a safety issue. Even if the fool who did that knew nothing about the art of it, common sense would dictate that all systems, notably brakes, would be checked before it was returned to the owner.
Unfortunately, you'll be dealing with this dealer more this week.
Opinions are like internet connections- everybody has one.