How can you play for more than 10 hours a day every day for half a year without doing m+ or heroic/mythic raiding, just occasional normal raiding? That's impressive!and yet you have 5 w/ 85+ played.
A droprate in the approximate region of 1% on live server seems to fit. (assuming the drop chance for Legendary 3+ on Feb~15'th or later)I have 6 legendaries on my main.
Zero have come from WQ Emissary Cache.
I am convinced that they simply dont exist.