Earlier quoted context omitted.
The alternative is a light in a predictable position or with a standard shape. I really hate that EVs are trying to be all modern about light systems redesigns. Specially in the US, car manufacturers are being very creative with their new designs in ways that are not even legal in Europe. I hope international standards for human-friendly lights can be agreed upon soon.
The point of the light is primarily for specific people like law enforcement to be able to identify that the vehicle has self-driving mode engaged so that they don't pull the operator over erroneously. Is it actually an issue if Joe Colorblind can't tell that the person he's passing has automated driving enabled?
Imagine you’re in a parking lot and the car is in self driving. Is it in Reverse? I have no clue.