I have enough proof, I even made a thread about it.
Plus it’s a perfect way to spite Night Elf fans and that’s their goal.
Letting Nathanos ruin the entire revenge / conclusion plot for the Night Elves already says enough and making him and Sylvanas immortal. Either that or they just hate Night Elves that much that they used Nathanos to spite them.
Again there are many hints in BfA already that tyrande was going to die. If Sylvanas is our hero, Tyrande needs to be gone and that’s why they’re getting rid of her. Even if an npc told us to save Tyrande (which no npc ever did), it would still fail just like all the other goals blizz sets for Night Elf players. Some examples:
- Prevent the Horde from reaching Teldrassil and wiping out the Night Elves
- Save the civilians in Darnassus
- Stop Nathanos from raising the undead Night Elves
- Reclaim our lands
- Get justice for Teldrassil
All of these are goals that were set for us, and every single one of them we failed miserably. It wouldn’t be different this time. Again Blizzard hates Night Elves and wants the race to be gone from their game, why should they keep Tyrande alive ? Burning Teldrassil was a heroic thing according to the writers because the Horde, Nathanos and Sylvanas are being praised as heroes for doing it and Tyrande as a villain that will be killed off in a cheap way for wanting justice.