That counterargument only holds if Tesla can build software that can approximate the human brain. I think it's laughable to expect they can do that, at least on any reasonable timeframe.

Even if they could, a goal of self driving should be to do better than a human driver. Avoiding technology that can "see" in ways a human cannot is just short-sighted, and a huge missed opportunity.

And all that still even ignores the fact that many common environmental conditions make driving only with human eyes very unsafe. Think fog or heavy rain. A car relying only in cameras to drive in those situations will be next to useless.