Anybody who blames the cyclists for being in the door-zone is absolving all drivers of their responsibility to look before opening the doorm
Furthermore, such logic is what bad drivers use to argue that bicyclist don't belong on the road in the same lane with them.
So it's the driver's fault. A cyclist can take all the precautions he can but it's all negated by a driver who isn't paying attention as he should when he accepted his drivers licence.