As a blind guy, fog and darkness don't affect you, significant bias detected.
If one of the aims is limiting the effects of random warband nonsense making people mad (ranged spread, armor effectiveness, certain ground types having weird friction values, etc), night/fog should go or get reduced in impact (restrict ingame daytimes closer to whatever the hell sunrise/sunset hours are) since those horribly ugly superbright anti-fog texture packs exist.