Even if visuals failed, Tesla has a sonar, radar and Tesla is moving at snail pace.
Hell, my vacuum stops moving when it detects it crashed into something (likely torque required to move wheels is larger than expected).
Edit: at the end of the day, it doesn't matter why it happened. The result is a crash in a super simple environment and is (to me) quite indicative to the state of things. They are supposed to come up with solutions, not excuses (also, Elon hates lidar, but that is still on Tesla).
Hell, my vacuum stops moving when it detects it crashed into something (likely torque required to move wheels is larger than expected).
Edit: at the end of the day, it doesn't matter why it happened. The result is a crash in a super simple environment and is (to me) quite indicative to the state of things. They are supposed to come up with solutions, not excuses (also, Elon hates lidar, but that is still on Tesla).