Black Mage

[Bourne_Endeavor]

No it's not. It's because their personal DPS isn't high enough to overcome the lack of a raid buff.
SAM doesn't have this problem as much since SAM actually does damage.

This blatantly false. Samurai is widely considered the weakest melee due to its lack of utility and damage not being nearly high enough to make up the difference. Monk already nips at its heels and Summoner surpassed it with the recent buffs. Yes, Samurai brings high damage in a vacuum, but like Black Mage, it simply can't compete with Battle Litany, Trick Attack, Disembowel, Shadewalker and Smokescreen. Even the oft-maligned Brotherhood comes out ahead.