The OP is requesting job-specific armor. In FFXI there were quests to obtain the five pieces, plus weapon, in quests that start at level 40 and continue with a quest for the final piece at level 60. The current meta (I think), is to wait until you hit level 99 to go after them.

The FFXIV equivalent is the level 90 gear you receive in a chest for completing the level 50 job quest.

Artifact Armor in FFXI can be useful at max level in some cases, as it can be upgraded. Level 90 gear loses its power once you start gearing up in Heavensward with level 115 gear. The two gearing systems are different enough that I don't see how SE could incorporate it into the game other than how they have already.