SignYourName, it was death by careless driving, not dangerous, that the driver was convicted of.
I've not watched the video yet, but will shortly.
I used to work at a solicitors' firm which specialised in motorcycle accident claims. Probably at least 50%, perhaps more, ended up with some form of split liability decision, or some contributory negligence on behalf of the motorcyclist.
As with anything, there are some crap / stupid car drivers out there, just as there are some crap / stupid motorcyclists.
It's the ones who ride motorcycles at speed wearing their everyday clothes / trainers that really bother me. I've seen some horrific photos of injuries on men who were wearing full leathers. It doesn't bear thinking about what could happen if you slid down a road a speed in shorts and a t shirt. :-/