I cannot comment on the
I cannot comment on the lawsuit, as I have no knowledge of the details, but here are a few observations:
In general I have found the eyesight system audible warning works well, but as others have mentioned, it can be fooled by certain street elements, such as the shadows of utility lines running parallel to the street. One thing I do have disabled is the physical steering wheel correction, as I have found it to be distracting, and it is a nuisance every time the system warns me that it is disabled due to a drop below a certain speed. A similar system in use in a rented Hyundai Santa Fe was much more aggressive in frequent small corrections, and I felt it was actually hazardous to use!
I don't expect perfection from these camera systems, and the manuals clearly state that one should not rely upon the eyesight safety system to drive the car (!) and to work correctly in all situations.