In a recent No Priors podcast with the Waymo Co-CEO Dmitri Dolgov, he talks about how they evaluated just driving with cameras and how it isn't good enough for full autonomy and doesn't meet their bar for safety [1].
The design is also flawed as it has to work with cameras anyway. The last thing you want is two systems arguing over what they see.
Sensor fusion is a thing. There are no two systems that “argue with each other”. I can’t believe the same old ignorant tropes are still making rounds.