Re: Hard decision but Mercedes are probably right
"...it was almost certainly driving too fast in the first place."
Up to this point, the default naive assumption has been that self-driving cars will be essentially perfect.
Many commentards have based their entire worldview within this topic on this amazing assumption.
This is apparently based on a near-future, amazing and hand-wavily undefined assumption of a sudden, massive step function improvement in system design, requirements definition, and coding practices.
Therefore, if we allow their assumption, it follows that all speed limits are superfluous.