I'm not saying that's the case, I simply don't know.
Though I do agree if this is the case. Dealer service parts schedules are often totally different to how you or I would see a large service, yet the price isn't reduced. Worryingly, I read they don't even take off wheels to inspect brakes anymore, and just look from behind the wheel. This not only seems like half a job to me, but also explains why so many people cannot get wheels off hubs when they get flat tyres, due to them being seized.