You've got parked cars everywhere restricting vision and junctions everywhere in this clip. In this case the rider was not riding defensively enough. You absolutely MUST presume that at every junction there will be a car or other vehicle about to pull onto the road if it is obscured by parked vehicles. If you see a car or other vehicle in the intersection you MUST presume that he/she hasn't seen you and will pull out. This is simply how you stay alive anywhere, but especially in Asia, although many people become complacent in western countries.

The policeman is being far too simplistic. I agree that going slower would have played a part, but it's not the whole picture. Sticking to speed limits or not is a nice simple cut and dry thing that police love because it is a simple boundary that can be easily enforced. The reality is outside a primary/junior school in whatever speed zone I'd ride past at 20kmh in the wet at 3pm, and likely up to 80kmh at 3am in the dry as the circumstances are completely different.

Also you must presume every other road user is an idiot that's just the basics of defensive riding, so I'm not trying to defend the car driver who was clearly in the wrong.