Since it is ultimately a conscience matter, they can't really 'ban' it. But as we all know, they are the masters of making rules out of conscience matters. Of course they want to ban college; if these evil men got wind that high school educated people are leaving or avoiding their nasty little cult they would start banning high school.
I've said this many times. The only thing required to Believe is to Feel. Thinking, acquiring Knowledge and additionally requiring Evidence often leads one to leaving religion and god behind, as another current OP suggests. It certainly leads to leaving this nasty, vile cult behind. And they know it.
It isn't rocket science. Everything that comes into existence fights for its survival, from a human to an ant to an organization. Their survival depends on keeping the rank and file dumb, stupid, un or under-educated and relying on their bias confirming nonsense spewed forth on a regular basis at strictly controlled meetings and in pathetically written articles.
And appealing to Emotions and Feelings.