Paryah

2. When Sylvanas talks to Del, her words trigger a flashback. When Del says her tears are for her, Sylvanas tries to show Del what that really means. Sylvanas' tears are for pain, loss, loss of hope. She needs to make Del understand.

3. She orders the tree burned. Her allies, including Nathanos, are in shock and just stand there gaping at this very bad idea. She screams the order and her troops obey their warchief, they fire. Her allies are aghast and in the end she stands alone and lonely as the tree burns.

3a. That tear blinded rage will come back and bite her. She says as much at the end of the quest when she admits that things did not go as planned.

4. What this does is open up an ironic path to growth for her. She shut down after Arthas. She wallows in pain. She has flashbacks. Unless she can learn from this she can't move forward, she can't be Warchief. She will have to find hope in this storyline.

5. How does this tie in with the Jaina short? Compare the opening sequences. They're telling the same story. The one thing about Jaina that made her stand out is hope. She always hoped for peace, for the best in people. At Theramore she lost everything, she lost hope.

6. Both women have a powerful figure in their past who symbolizes their pain and loneliness. For Sylvanas it's Arthas. For Jaina it's Daelin Proudmoore. Both will need to make peace with these memories if they are to move on.

TL;DR: Garrosh was an insecure leader grasping for power. This is not that story. At. All. This story, I predict, will examine PTSD, redemption, and finding hope.