In my first law class the prof said, "When it doubt, sue everybody."

Specially when the goal may not even be to find and demand anything from a culprit, but simply to prove there was a culprit.

Insurance. This is about insurance.

See, in my country, you could not use a car's dashcam recording as evidence in a small claims court. But I could 100% use it with insurance. They don't abide by the same rules of what counts as evidence.