Tried to use it on my Horde DH and ended up at a graveyard in Stonetalon Mountains. What is going on? 
Strange happening with Zepps lately. Most Zepps from Org to just about anywhere lands you in that same graveyard.
I think Zepps are being replaced by Portals.
When taking a boat or a zeppelin if something bugs and it can’t figure out where to place you then it goes to a default location. Horde go to Stonetalon and Alliance to I think Westfall. It’s just a failsafe so you aren’t lost to the void. 
There use to be a bug with the boat from Menethil to Darkshore - you would appear in the sky above Mulgore and go splat. The nearest graveyard was in Stonetalon. It was not fun.
Because there’s probably something with the event or Chromie time causing phasing issues with the zepplins. I think this is why they are being replaced with more lame portals. If you are on a flying mount, you won’t get ported to a graveyard and will just start to hover when it disappears.
Same thing happened to me years ago. I got on the zeppelin, the. Went to get a drink of water and found myself And some other confused players in stonetalon. Stuff happens ha.
Sometimes on that very zeppelin ride, I’d instead end up outside a cave by a road in Stonetalon. Might be a graveyard, but I didn’t think so.