Your post is right on all counts... And everyone is wondering why CYNJ is singled out. It's extremely odd, because one would think that many of these aircraft visit other airports in the lower mainland once in a while, especially when it comes to the students. When I was learning (at ZBB) we regularly flew to YPK, YNJ, and YXX for touch-and-goes.
Language is a barrier at many of the schools in the lower mainland, not just CYNJ, so I don't see that being the driving factor either.
It's been postulated that the reports are being kept high so the necessity of keeping a tower there is ensured. Unfortunately, a side effect is that it's making the airport look like the most dangerous one in the lower mainland... And if the NIMBY's get hold of that info, they would surely clamor for it to be shut down.





