Found this earlier, might apply here too.
https://steamcommunity.com/app/435150/discussions/0/1457328927839906084/"Warfare skills, for the most part, scale with weapon damage (not strength or finesse specifically, although since strength, finesse, and intellect increase certain weapon's damage, they also increase warfare skill damage when using those weapons).
So when you're using spears or daggers, warfare benefits from finesse. When you're using swords or axes, warfare benefits from strength. When using staves, warfare benefits from intellect."