Nobody’s perfect. Heck, Tesla’s production of their cheaper model is a joke. They can’t fulfil the pre-orders IIRC they’re on a 33% of their target goal. But they also don’t have the many decennia of experience and efficiency for example the German automobile industry has.
Things like this are likely to happen with early adopters of technology like this. The same is true for innovation like aviation such as airplanes, zeppelins, and early cars.
“Traffic accidents kill 1.24 million people a year worldwide”. I don’t know if that number is correct, but for the sake of argument let us assume it is accurate. You’d then need to prove that Tesla statistically kills more people than non-autonomous cars.