Doesn't matter. If you're cycling and you see a moving car, assume the driver doesn't see you. Never cross the path of a moving car even if you have the right of way or a green light etc. When you approach a junction, your head needs to be on a swivel constantly looking left and right and you need to be prepared to stop even if you have the right of way. This pretty much goes for motorcyclists as well.
I'm not blaming the cyclists here, but the reality is that when you are cycling it doesn't matter whose fault it is if a car hits you. You're still dead.
The cyclist may not see the car if they stare blindly into the distance in front of them. GP is making the point that the cyclist should be aware of their surroundings, and taking precautions accordingly. This includes looking for approaching traffic down the length of a side road on approach to an intersection.
While I don't discount that there may be freak scenarios, as a motorcyclist I agree. If I don't see a car, a pedestrian, a bird, a kangaroo, a log on the road, I go to hospital. It's as much my responsibility to ensure my own safety as anyone else's.
I'm not blaming the cyclists here, but the reality is that when you are cycling it doesn't matter whose fault it is if a car hits you. You're still dead.