Ninja got buffs on certain skills when Square realized they were incorrectly coded as physical damage rather than magical. So they upped the potency when they fixed it so ninjas wouldn’t feel bad when the outgoing damage was lessened as a result of not getting the benefit from the slashing debuff and dripping blades trait.

Not exactly an outright buff, as the job started stronger than they expected, but still an instance of imbalance between what they intended for its power level vs utility.