Warrior and dark knight are the same job
SCH and SGE are the same job
RPR and VPR have the same awakening skill

Most jobs do 123 combo
All healers have 1 spam and 1 dot for 99% of their DPS rotation.

All jobs are designed around 30,60,120 s window and they are similar up to 90% of the same skill.

Uniqueness for most jobs are 120 s skill and that's the problem, that means each fight you are allowed to be unique 5 times only if the fight duration is 10min.
Uniqueness should be in the most spammy combo to the job instead of 120s skill.

Game do not allow players to have agency on their build so if you play SMN you are playing 100% exactly like all other SMN.


So yes the job design is so similar and you could just change Icons and weapon to create new job