The theory "Canadians made this up to explain their own bad driving" requires an explanation of why there was also a large enough rise in accidents that car insurance rates needed to double.
The theory "it happened like they said it" explains why the rise in accidents happened, and fits with normal driving habits in Hong Kong.
I'm talking specifically about this ridiculous story. Sure, it might connect to this broader phenomenon, but it sounds like you don't even know for sure if an immigrant was involved!
The theory "it happened like they said it" explains why the rise in accidents happened, and fits with normal driving habits in Hong Kong.