Or maybe the realized exactly how OP those weapons are and they toned down the abilities for the other releases because of this issue. I mean fatebringer is the perfect example. It is such a good weapon it is ranked up there with the exotic handcannons. While you might personally like this I don't think it was Bungie's plan to have legendary weapons that have abilities as good as exotic tier weapons.....white nail......firefly on a handcannon.....etc. They have done a relatively decent job in adjusting this...although I do admit shank burn is perhaps the most pointless ability I have seen.