I really, really disagree with the idea that C4 validates Taliesin’s “Facts come and go, stories are what lasts” mishegoss. We’ve seen several instances of characters being able to get facts and history directly from the source, chiefly the Kibbenimkedaz, which allows the bearer to cast Legend Lore on a stone and see its memories, and Azune, both with his Mending being flavored to literally make the item remember its previous state and with him awakening a dragon that had been long forgotten. Even KoTher’ai, although it is no doubt not a completely faithful telling of Murzat’s rebellion, summoned the actual spirits of history on the actual spot where Murzat died and showed us a little truth of who Murzat and his allies were.
In Aramán, as in our world, stories shape how history is seen in the public consciousness, but they do not have the last word. There are people trying to uncover facts hidden among the popular fictions, and they matter deeply. Thaisha knows that the defaced temple of Trozhna was originally a shrine to Tehana. The Schemers know Yanessa didn’t actually resurrect herself. Hell, Wick knows his power comes from his basement grandpa. No matter how deeply buried by time or hidden by the people in power, the truth exists, and you can find it, and you can use it.