Almost exactly like that, yes. Eliminating Bard procs wouldn't really increase the number of Bards in Abyssea, at least not in any party I've ever joined. They don't do Bard a service by including Threnodies as an option, they do Black Mage a disservice.
I agree with the basic analysis that DRK and DRG don't have a large niche.
DRK's niche was/is low-pDIF situations thanks to Attack Bonus traits, powered up Last Resort, and Soul Eater. They are by far the highest attack DD in the game at the moment. But how many monsters really have sky-high defense and don't resist Soul eater? Pretty much only the newest content (Voidwatch, where you don't want to kill things too quickly and meleeing impractical, and new Dynamis NMs.) It's a niche, but it's a tiny niche at the moment.
I think DRG is a result of SE's original game design, which was impractical at best and stupid at worst. I've always suspected that SE designed all of their original jobs around the assumption that SA, TA, and Skillchain/MB were king. Dragoon is supposed to be the ideal TA partner, I think. Level 30 Trick Attack, level 30 High Jump. 1 Minute TA, 1:30 High Jump. When Skillchain/MB died, DRG lost its niche. Now it's just a WAR wannabe (or WAR is a DRG wannabe, depending on your disposition).
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