Meanwhile the restoration artifact was for Queen Azshara who spent half of her life as an High elf… and lore. Much of the highborne lore showed much of how night elves controled the elements. It is lore that explains why Nagas were naturally shaman. That connection is still seen in night elves to control elements. Even being former dark trolls. Learning to forget shamanism is actually the weird quirk about that culture. It can be interpreted they evolved there look and connection with the elements.
Your limited view of the lore and interpreptation can be limited by your own choices. It need not dictate other people’s choices.