Maybe not..... Fated seem to be BS too. Just instant decrypt engrams that have a chance to drop something you don't have. So pretty much like any exotic engram in the game. Reddit and my own experience, asking friends, shows that you're just as likely to get a duplicate item or a CoO item (so it feels like you got something new). The effect relies on people who did get a new exotic talking about it. This has the psychological effect of leaving doubt in peoples minds and, like most people will, you'll try the fated a few times before it registers you've been conned yet again. By then you've wasted 2 - 3 hundred shards.