That is an excellent point, given how often they use such actions to drive a wedge between fromer friends turning them into enemies, and yet this.
The problem is the whitewashing. They want to tell a good story, but fail to make realistic steps.
It's not that Sylvanas joining the horde is impossible even after Lirtah, it's her loving the horde that is utter nonsense.
At least for a while we should have seen some form of hate or a sequence of events that forced her with thehorde powerful because of a worse threat or greater hatred presing down.
Also, Sylvanas working with the jailer who is responsible for Arthas and her first state and hatred, is just STUPID without painting her as fractured and broken herself in a clear obvious way.
But you wouldn't do that because she is a pet fave.. which ends up making it all rather silly.
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OwenBurton - thanks for the summary, well compiled, wish you or someone like you had done the Illidan book similarly... the leaker literally just posted the end result without the context. The problem with the story isn't Golden, sounds like she did a good job showing the depth of emotion and hat goes wrongwithh Sylvanas.
I don't think she would have been allowed to show Sylvanas as crazy and broken in an obsious way, which is exacty what she should be after going through that experience. Powerful as they are, largely the undead, and DKs should be crazy, or very untrustworthily unstable - however if you want ot make them sane enough, you have to write a compelling route to sanity in the face of the horro of what they go through.
Not warcraft though, you go throughhell, andyou're able to make wise, just and sane decisions just like that.