Stonetalon tabard doesn't remove (Horde)

I had finished the quests in Stonetalon mountain on my Horde character, where you get ranked up with the tabard from the Krom’gar General. I’ve witnessed the scene where that one location gets blown up and then Garrosh punting the npc off the cliff. I completed the entire questline but the tabard remains. I am on an RP server, so it rather ruins the immersion when the tabard is still there. I hunted for any breadcrumbs that led into Stonetalon Mountains, but no avail.