Yeshivaguy45, you are taking my point a bit too far.
I’m not necessarily taking sides for (or against) the hanhalah, although I agree that the effect a bochur is having in other bochurim’s behavior has to be taken into consideration.
My point is that you can’t prove causation based on two events occurring in a seeming relationship.
If there is any correlation, it might just as easily be that whatever caused these boys to violate yeshiva policy (without judging the advisability of said policy) caused the spiritual downfall.