Nerfed to death or September 25th Destiny HotFix

Bungie also decided to take all the joy out of the Queen’s Wrath event story farming by removing Ascendant Shards as loot for deconstructing Legendary gear you get as reward for finishing Queen’s Kill Order missions. No more free end game materials for you guardians. You have to endlessly farm daily story missions and Vault of Glass raid, as Bungie intended.
They also removed loot after a hard wipe in a Strike. It seems that chance of engram loot was higher if you hard wipe in a strike (for example in Nexus Strike where people farmed those Goblins for engrams). This loot removal is very short term, but it should prevent further farming attempts in strikes.
You can read in detail about all this in a post on the official website.