Missing mobs quest the cleansing of Jintha'kalar 7.0 2

[eyerobot]

[Name, Type] the cleansing of Jintha'kalar 'dragonblight, horde
[What it does] The mobs are all missing for this quest.
[What it should do] Kill any combination of Jintha'kalar mobs for quest completion.
http://www.wowhead.com/quest=12545/the-cleansing-of-jinthakalar
https://www.youtube.com/watch?v=ysSBSlknYF0&ytbChannel=GitGudGuides