Ferrycraigs, I wonder if you have lowballed the number of cars with batterygate. Only a small fraction of owners post on this thread, or have taken the time to complete the tally sheet linked on page 1. I have spoken with two owners of old S85s, and they were not aware of any range reduction because they only drive out of town once or twice per year on relatively short jaunts. They do not examine carefully their range meter on the instrument binnacle because their routine drives do not warrant the need.
I suspect that this issue is more widespread. But owner ignorance or inattention could easily contribute to a larger set of affected cars. Moreover, there may be vehicles like mine that will have reduced range kick in after a period of time.
It strikes me as curious that Tesla has developed and promoted the version 3 Supercharger with its "up to 250kW" of charging power that the Model 3 and forthcoming Model Y can use. Will these batteries fail too after prolonged usage, but fail only after the four-year warranty has elapsed? How can the Tesla semi be good for over a million miles if the putative Megacharger to refill those batteries will ultimately cripple those batteries after a few years so that their range drops by 15-20%? Those long-haul truckers ain't gonna be a happy lot if that were to occur, or if Megacharging takes 90 minutes instead of 50. The Model 3 batteries are too new and have not had the extensive trials that the original S85 batteries have had over the past six to seven years. That chemistry may wind up like the chemistry in the 18650s. It is too early to tell.
There is a lot riding on the future of Tesla Motors and its innovative batteries, battery managements systems, and Supercharging speeds. I wonder if the camel has gotten its nose into the tent.