Ardenweald is not really Night Elf… it is otherworldly fairy forest. Just compare it against Val Sharah for example and thematically the differences are pretty striking. Ironically there is more Troll and Tauren to the first section of Ardenweald end game campaign then there is Night Elf.
Uhm… Ursoc was destroyed forever, sacrificed in his entirety to keep Ardenweald operating. That wild god as was JUST told to you was
Aliothe, the Droman of Hibernal Hollow. She is from a world the Legion destroyed, and so has no home world to go back to.
https://i.gyazo.com/a5c31d1ba25777f6b30a4e916215854e.jpg
How did you expect the notably kind-hearted green aspect to react? The World trees are closely tied to the Dream, so of course she would want to act to defend them on principle alone. I do not know how any druid could of gotten behind the wholeslae destruction of Darkshore and burning the world tree… and neither did Blizzard, which is why they sent them all to Silithus for basically the whole expansion.