If Waymo is truly as much better than Cruise as the statistics claim, this is a perfect opportunity to release the full video of the incident. Most collisions are avoidable, but a few are the result of a perfect storm of conditions that would be difficult to navigate for even the most skilled human driver. To know whether the truck's occlusion of the cyclist is one of those cases requires the actual footage.
What about the privacy of the bicyclist? What if it was his/her mistake and they don't want to be ridiculed by the entire world?
See all the dashcam videos on YouTube.