I as a player didn't have a hand in that actully. During the time when the questchain was released I was unsubbed, so I never did that questchain which lead up to the Burning of the Teldrassil, even if I hade the possibility to do the quest chain, I wouldn't do it, since I don't want to support Sylvanas in the burning of the Teldrassil.
I am just sad and tired that the Horde/Sylvanas keeps doing all the villainous stuff over and over and over, and also that everyone just tags along and don't do anything about it. Back in WC3 and in vanilla it was a bit more grayish between all races, no one wasn't truely right or wrong, and the Horde motivation was more of honour and survival(Yes, I am one of those "mUh hOnOuR" people). And the Alliance even hade a few questionable actions around them! But now it's just dumb storytelling and I feel extremly alienated from my faction.