Finally finished reading both elegy and a good war.
On A good war, yeah the reasoning to burning the tree is still not that sound to me. Even if Malfurion surviving revitalizes the night elves, keeping the entire city hostage would be a far more devastating blow than trying to send the message that war is going to be expensive and cutting the ties of the alliance from Kalimdor, freeing them to go for Undercity and possibly Silvermoon. Aside from that it was a really good short story. I loved the build up tension from the spies, having Saurfang instead of Sylvanas lead the initial war effort (which solves the issue of gathering support for the war effort) and finally have everything fall apart due to the same principles that kept Saurfang going.
On Elegy, what I can say uuff. RIP Delaryn
. Also fuck Tyrande.