What TWI did was lead us into a lifestyle that was based on self delusion and irrational thought.They specifically taught us a system that was designed to do exactly that.That's what session #5 #7 was about. Eve allowed herself to have independent thoughts. "Look what happened to her. You don't want that to happen to you, do you?" Then, it was enforced by classes like *Renewed Mind* and *Dealing With The Adversary* (along with countless examples in other classes and teachings). Those two classes had no real purpose other than to teach us a system we could use to independently delude ourselves. And, we weren't supposed to associate with people who thought differently than us. Why?, because it weakened our ability to maintain the delusion. You don't have to call it a cult or brainwashing if you don't want to but that doesn't change what they did.
If you see a friend or relative who wants to buy or use a product you know to be harmful, you can't put electrodes on their forehead to get them to stop or physically reach inside their head to change their thoughts. The best you can do is to offer rational enlightenment and initiate logical discussion. That's how you prevent cults or at least that's how you stunt their growth on a small level.
edit: session #7, not #5