[YeGoblynQueenne]

Well, reaction time is not all you need to drive safely. You also -and in fact, first- need to be able to generate the right reactions. Otherwise, you'll just end up reacting in the wrong way very quickly. And causing accidents very quickly.

In fact, if you have an autonomous vehicle with the wrong reactions and very short reaction times, it will pose a much greater risk to agents with slower but safer reactions (like humans, or just safer auto-cars) who won't be able to get out of its way fast enough.