Good last point. If it was law, wouldn't it be written in legalese - long sentences with no commas to avoid precisely that kind of confusion?
But if its in the ANO, you ignore it and you have an incident then it will be that much harder to avoid problems with your insurers and charges of negligence. Isn't the highway code similar? Not "law" but if you don't comply, you open yourself up to more problems than otherwise.