Joe, its not that at all. People trust the dealer to have the training and skillset in the service department. I grew up around dealerships, specifically the service departments. They are not what they used to be. Techs used to care about their work and take pride in everything they put their hand on. Now, its get it in, get it out and use shortcuts. They don't have any concern over the effects of their actions. These techs don't take the time needed to keep up with changes and its like a trickle down education of bad information.
What good is it to have "one good tech"? You get an overworked tech and depending on the shop's flow, car's stacking up waiting for the one guy to get to it. Where's the logic? There isn't any. It's for cost control and the attitude at dealerships in recent years is concentrate on profit.
There is a member on this forum that took his car to a dealer to have a problem he believed was transmission related checked. He was told he needed a new transmission. A CVT. Went to another dealer and was told no problem was found. Is this poor skill or extortion?
I understand what you posted. My point is that people have faith and trust they will get a proper repair from trained professionals at the local dealership. Not so. At times, its like visiting Wal Mart for a diagnostic. Don't get me wrong, I am not saying all dealerships are poor. You just have to be careful and check into the credentials of the person who is tearing into your engine. And I see a lot of misdiagnosis and improper or poor repair practice come out of the dealerships.
What happens when the "one good tech" has a day off?