Quote Originally Posted by Sstoopidtallkid View Post
Actually, the Swordsage doesn't get the AC bonus unless he's in Light Armor.
While they could have been more explicit, I think it's relatively clear that by removing the light armor proficiency in the aim of making a "Monklike" character, the intent was to use the Monk version of AC Bonus instead of the standard Swordsage AC Bonus.