It's the only way I ever heard of it happening. I took it to a different Hyundai dealer across town when I thought I had some transmission issues (turned out to be a bad mount later on) and that dealer had some horrible customer service.
I've never heard of Genesis having some superior service over Hyundai, I've only ever heard of Genesis owners being mad at having to go through Hyundai dealers and getting the same treatment as them.
Me? I really didn't care. I wasn't any better than anyone else.