Quote Originally Posted by Nyaa View Post
Should have worded it better. Why maneuvers that require specific natural attacks don't grant these attacks with regular damage dice for initiating that maneuver?
Because doing that would take up a lot of space due to the need to specify the damage of each natural weapon granted by each maneuver in each maneuver's description. The stances do a much better job of handling the "grow natural weapons" bit because they're designed to be persistent effects.