Simplex is developed by a person who has a rather difficult view of the world. I would not recommend using it as long as this person is responsible for it.
Seems to be made for USA as only cars are counted. In Europe u usually want to distinguish between cars bigger cars, bicycles and pedestrians. You also need to blurr everything not related to cars and you can't just collect all video data in a central space. Or need lower res cameras.
Absolutely false. It is not a skill issue to write safe c code. It is simple impossible. As in every humans makes mistakes and we know by know that statistically it must happen. There are also other issues as tooling. We need better languages for system programming. If your are sower because you don't whant to change, than the world will move on without you.