This has got to be the epitome of bad writing by blizz dating all the way back to Legion. It still bothers me how blizz writes the Nightborne as the victims in all this mess.
You talk to Thalyssra and she's all like "the Kaldorei still resent us because of Elisande" and all I can think of is "YOU JOINED THE HORDE!". The very same faction that later burned down their home and nearly wiped out an entire civilization. Yet she accuses the night elves of "arrogance" and "mistrust". And everything we went through with Garrosh, please excuse some of us if we're a bit skeptical of Horde leadership decisions. Also, being a night elf player myself, I'm getting sick of being viewed as the bad guys when the blood elves have done far worse and they get all the praise for being so "good and honorable".
Let's recap what happened:
Elisande made a deal with the Legion and was willing to destroy Azeroth to ensure her people's survival (which makes zero sense).
Thalyssra didn't want to see this happen, so she sought help. Both Alliance and Horde sided with Thalyssra to usurp Elisande.
Then when confronted by Tyrande with the possibility that the Nightborne might become "power hungry" and "mad" again, Thalyssra was the one that got all offended and joined the Horde, enemy of the Alliance, essentially becoming the very thing that Tyrande was afraid they would, an enemy of the Alliance. Don't forget, the Alliance and Horde were still pretty much pissed at each other after coming out of Pandaria. Not to mention with Sylvanas becoming warchief, everything she was doing was driving a wedge between both factions anyway and what little bit of cooperation they may have had.
Let's also not forget that the entire Nightborne society is essentially a hierarchy who look down on lesser races and believe that everyone is beneath them. They would never accept night elves into their society. It'd be like inviting hippies to a party hosted by oil tycoons.
So, I don't get why she's so upset that the night elves don't trust her and furthermore, blizz needs to quit with this BS victim mentality. They KNEW what they were doing when Elisande made her deal, it's not like they were completely oblivious to it otherwise there would have been an uprising long before Thalyssra started it.
At least Occuleth has had some sense to see the choice to join the Horde was wrong. I'm surprised he's still alive (at least I think he is).