Why hasn't this gained any traction in the last two years? How do you know AutoNation and CarMax will include it as a package? Are you on their marketing teams? It's simply a guess that you are making.
Insurance carriers, perhaps. But they will challenge any accidents to prove the driver overrode the system. That's how they work. Insure you then deny you if they can.
Hence why AutoNation and Carmax will include it as a package. And insurance carriers as a discount on premiums