In truth this shows how poorly and underdeveloped the Kaldorei are even though they have a piece in almost all expansions.
Shandris is essentially the princess of the Kaldorei and I think most of them didn't even know who she was.
PS my theory:
Elune a demonstrator to have powers of all cosmic forces.
Elune is the "perfect" Daughter between the first of death and the first of life. I mean, she's a First.
WQ is the "imperfect" daughter she is just an eternal.
Possibly at the end we will have 6 pantheons and the Elune pantheon will have a piece of each pantheon.
Theory two.
The Kaldorei are elune's chosen people .. to destroy the legion.
And the trolls were his chosen people to destroy the ancient gods.