You say that but we’ve had cars that can do what you describe for a decade and yet actual autonomous driving is still waiting.

Not failing due to a software or hardware issue is way more complicated than just usually working.

Avoids a collision is similarly way more difficult than just detecting a stopped car. What needs to happen when a car blows out a tire at speed isn’t just slam on the breaks for example. At scale cars need to adapt to the conditions and drive defensively not just watch what’s directly in front of them.