FFXIV's main problem isn't jobs as they have no problem turning a job that is originally a certain role and turning them into another role, same thing happened with DRK. Their problem lies in the weapon pool. The series has a TON of jobs but there's like 6 of them that uses swords, another 6 (hyperbole) that uses staves and like 3 that uses guns.

FFXIV tries to keep all classes distinct when it comes to weapons but it can't be helped that some weapons will share some resemblance (Swords and Greatswords and Katana being all swords), adding even more will give them problems in variety and design. Popular jobs include Spellblade which uses swords so that's gonna be a problem, Blue Mage uses Sabers in some games and swords/daggers in others. Dancer right now has an advantage with being a job with a unique weapon not seen in game yet (Cloth from FFT).

Making Archer become a Bard instead of making Bard its own job and Archer become a Ranger is something I'm sure a portion of them regrets.