Sandy Nightsaber missing from vendor

[Midius]

WoW Freakz item link: https://www.wow-freakz.com/item_finder.php?item=166436

Character name: Thaidakar

Bug description: This mount is missing from the Alliance 7th Legion medal quartermaster (as well as the Horde one). Starting from 8.3 it should be purchasable for 350 of either currency on any character on which you completed the heroic Darkshore warfront, but since this isn't implemented, it would make sense to be available irregardless (especially since the currency drops from the dailies in the event which replaced the warfronts).

Proof: Here you can see the vendor on alliance side and here is the link mentioning the price and the NPC that should sell it.