I noticed on all Alliance toons that the feature is selected to not unmount during flying, although it always does and I am back to dying often lol. On the Horde it works most of the time, although on one or 2 occasions it didn't. If the Flying Broom is selected I think that was when it allowed me to dismount on Horde when I shouldn't be able to. Sorry did so much testing and not well at all today, so sorry if my reporting isn't the best and the game was shocking and locking up heaps and really bad lag on Oceanic Servers. So in short the feature isn't really working as intended, never works for Alliance toons, but on occasion it works for Horde and again Version 10 Beta.B