so, seeing as this keeps happening, the rules obviously dont work. and no, we dont need more rules, as this has been proven to not be a deterrrant to these actions. we need better training and a better attitude to flying.. until attitudes change towards low level flight, im sure in the not to distant future, there will be another report like this one just with different location and different names..
Sadly those who flout the rules will not seek out the correct training, regardless of how much education is provided, or what rules are in place!