20 meters away motion vision is more accurate than stereoscopic vision. What is lidar helping to solve here?

Waymo claims its system, which uses a combination of LIDAR & vision, resolves objects up to 500 meters away

https://waymo.com/blog/2024/08/meet-the-6th-generation-waymo...

This company claims their LIDAR works conservatively at 250m, and up to 750m depending on reflectivity

https://www.cepton.com/driving-lidar/reading-lidar-specs-par...