Imo, Talanji is what Yrel was in wod. My dislike for Talanji is about at same level as Yrel.
I'm sorry, if someone gets offended by this, but like Yrel, Talanji exists only because blizzard needed to add some woke in the storyline. This is entirely normal these days so I dont fault them for it.
Talanji is entirely one dimensional character. Doubt she will be in the story much unless something directly relevant to trolls happen, which might, but it will be a passing event.