Square Nothing Trait Attacking Too Much

Square Nothing - When this creature attacks, it also deals 100% damage to each enemy that has at least one of the same debuffs as its target.

Given the description, I was expecting a single attack that hits all enemies since applying debuffs to the enemy team is easy.

How it works instead is some sort of rampage where the centaur attacks every enemy individually, and more than once. It seems to be attacking for EACH debuff they share or something.