Void elf lore is a contradiction in itself.
Void elf lore: "We study the Void to defend Quel'thalas." Proceed to join the Alliance.
Void elf lore: Small band of scholars studying the void. But we see warriors, hunters and seemly big numbers of them despite no explanation.
Void elf lore: "What? Did you think my people use the void as a toy"? And yet they put void in wine, jewelry and any other cosmetic or daily applications.
Void elf lore: "We learned to control the void and resist its whispers". And yet no role against all void threats in the whole expansion that introduced them.