The problem with using an oh so powerful technological advancement as a main story line is that it's going to be filled with loopholes. Some do it better than others of course and keep it believable. Those are also incredibly well thought out though (Dark for e.g.), and this is not. Yeah, I can overlook some unbelievable things in sci-fi movies/TV but when the story completely revolves around a big theme and it's riddled with holes, it's kind of hard to ignore. It's also just lazy writing and lack of imagination when you are use something as a magic trick to justify weakness in the plot. I couldn't get past a handful of episodes.