The point is that stable ground connections are notoriously hard on something that by design shakes, rattles, and rolls with all of the vibrating and bouncing on our "modern" streets. It's also a very easy thing to misdiagnose unless you're a mechanic that specializes in automotive electrical systems. It also takes time for new year models to display their warts enough that non-dealer mechanics gain experience repairing them.
We're repeating history but with more energy consumption.