The talent should only bypass defensive buffs, benefiting the attacker, but please check the gameplay. I’ve been noticing it many times since two weeks ago, the talent skill bypasses debuffes too.
That means the damage dealt is lower than actually is. The debuffs are supposed to amplify the attacker’s damage. The bug ignores these debuffs.
For example, Lianna’s skill on an enemy with Mist and Eve’s debuffs combined, would deal around 1600 damage to most 5*.
When the talent is active, the damage ignores the debuffs and only deals 800-900 damage.
I don’t have a screenshot because this happens randomly.