I've lived in Israel for the last two years. They get it. It sits in the back of their hearts like a burden that will never ever leave. You don't have to worry. They get it.
I didn't say the kids didn't get it, I said the teachers failed. In my experience kids all sorts of stuff we don't give them credit for, and they don't lose all of that insight when they become teenagers. However even if the kids get it, their teachers, particularly when acting as chaperones, have the responsibility of both teaching and enforcing proper decorum. It the article is correct, they failed.