Is it true that Night elf society is matriarchal

Understandable.

I did, though. But I was conditioned as such from the early Legend of Zelda manuals.

Fair, but that was still what I was talking about. And in Warcraft III lore, the Druids lead the Night Elves for a time after the Sundering. As described, I do not see the Warcraft Encyclopedia changing that. And if you do, I agree with you more here instead: