Hello there long time lurker first attempt at contribution. Did a search for this and didnt find it anywhere. It's fairly useless unless you're trying to get from Kargath to IF.
Anyway I recently did an alliance to horde transfer on my main I had the key to searing gorge which is useless for alliance aswell. Didnt pay much attention to my keys untill I was doing the opposing faction T-day quests was trying to find the fastest route. I didnt know horde couldnt get the key untill I asked a few people (if horde can let me know ill remove this post). I was missing a few keys in my key chain i still cant figure out what they were but I still had the key to searing gorge.
Once again this is fairly useless dont see people paying $30 just to get this on horde, but I just figured I would share if anyone was interested. let me know what ya think