Matalarata
Arcane
If you take the original KotE books as Gospel Truth
Well... One doesn't need to take everything for truth. Point is, they have a much clearer idea of the (still very hazy) timeline and what exactly happened. It definitely is due to KoE being one of the latest iteration of the history itself but it links up perfectly with the Age of Sorrow and all other topics, like the Impergium, the other Supernatural Creatures have in their lore.
Ofc they see themselves as inheritors of the Wan Xian and they use a chinese term to indentify them. It really proves nothing tho, they just remember and have tangible proofs there was "something" back then and that the rules of the game itself were quite different.