So lets look at every event that has ocured, we always go back to the horde being the ones who started it.
ner'Zhul let the burning legion in and poison the horde with mannoroths gaze.
this lead to the lich king and so on and so forth.
Gul'Dan was the leader of the awks not long ago and they followed him whilst knowing he was using fel magic(watch the film)
Kael'thas sunstrider was obviously a Belf who wanrted to use the sunwell for more arcane power.
Thrall trusting Garrosh led to the events of MoP and WoD, again both awks.
The horde always causes the problems yet they are seen to have no part in the events which they have caused.
This is very interesting, do you think its intentional or coincidence?