Would you be able to show me where it shows that you will receive a Legendary Engram for the first completion of the SIVA Heroic Strike Playlist? Here on the website and in-game both show (and have shown, since RoI's release) that they award you with a Radiant Treasure. In game, it shows you'll also receive Legendary Marks and Experience (This is also the same since RoI was released) I can find no place where it says you'll receive a Legendary Engram. Why do you feel you should have received a Legendary Engram for something that doesn't have it as the reward for doing it?

i got a 395 ghost from nightfall expecting it at postmaster wasn't full by any means not there. maybe the robot stole it because i have her broom. ;_;