Yeah that never made any sense to me either. The whole 'non-interference' and 'free will' perspective doesn't sound very believable when it's presented in the context of the nefarious extra-terrestrials being permitted to run amok, and to deceive and manipulate things, but the benevolent ones have to sit back and do nothing? How's that for an inter-galactic 'justice' system??? If no outsiders were permitted to intervene, and humans were subject to their own peril, that would make more sense to me.... But that's not how the situation is presented and there is compelling circumstantial evidence that our ancient cultures had contact with ET's.... So apparently the good natured humans are not only fighting against their own kind, but also the influence of a highly advanced nefarious group of malignant extra-terrestrials? Doesn't seem like an even playing field does it.