I doubt very much if that agreement is enforceable, nor do I think Rawat would get very far suing people for exercising their free speech rights and talking about what "the keys" are all about, especially if they found that they were not to their liking.

That would be like saying Coca Cola would give you a free bottle of soda if in return you agreed never to criticize it, or let anybody else taste it, even if you thought it was poisoning people or was otherwise damaging to one's health.

But I am all for Rawat having those egregious and draconian legal threats on the intro to the Keys site.  There is no better way to turn people off, and see that Rawat sees this "free gift" of some watered-down meditation techniques and related belief system , as his private property, out of which he has gained an obscenely opulent material existence.