A Pilgrimage Gone Awry (Alliance)

I feel sad for this guy losing his sister and best friend, but the ending is a little odd. The potion he makes doesn't work and then he says this.

Nadur says: Thank you again, <Name>. Your kindness will not be forgotten... and neither will Tuliaa.

He then walks off into the distance and leaves her corpse lying there.

Okay bro. -_-

Can you say anticlimactic?

Nadur: "Please, I need your help. If you could bring me some prowler blood, snapdragon flowers, and a riverhopper eye, I can fashion a potion to bring her back... I just know I can..."

Hand Nadur potion* Thanks!

*applies potion, nothing happens*

Nadur: Oh well, guess not!

*Walks off and leaves his beloved sister's corpse to the Ridge Prowlers*

ok........

After completing this quest you will see 3 unnamed spirits alternately walk by on the path next to the overturned wagon.

One spirit i can make out as Tuulia (the dead girl that could not be brought to life) - i don't know who the other spirits are, but one appears to be an adult male and the other an adult female.

This seems to be repeating over and over, making me think that this is a reference to some in-life event that prompted Blizz to create this sad quest - Maybe like a tragic family accident