There is a zone close to parked cars which is often referred to by cyclists as the door zone. This is the metre and a half distance from parked cars into which doors can open. Imagine a cyclist cycling along at 15mph in this zone. Imagine now a motorist opens their door without looking as the cyclist approaches or is level with the car.
Nasty accidents can and do happen.
That is why I don't cycle close to parked cars, and why if this man had continued to open his door, which does happen, I should have been ok.
So if you cycle, keep out of the door zone!