Why is Ninja always the weakest melee?

[rewd]

Trick Attack is the reason NIN's damage output is so low. It's such a powerful utility that allowing them to have actual damage alongside it would just destroy game balance. The low damage is, in essence, there to prevent NIN stacking. ....Which it sorta failed at as observed by the poster above me.

That's not how it works. Even when you factor in the contribution from TA, NIN's damage output is still too low. Damage buffs also aren't utility, they are simply another mean to the same result, DPS.