If they don't pass they won't be Ranger Qualified. So, what's your problem just letting them try? Let them fail. Are you afraid they may, just may pass the qualifications? My guess, that most if not all will most likely fail. But I will be damned if I refuse let them try.
Not to mention the disruption of the existing training program just to accomodate the vast numbers of applicants that will be pushed through, even if they eventually fail.
But hey, the "logic" shown by the gals on this thread has provided quite a laugh.