The dev team seems to be falling in love with the whole "heavy/light/mage" gearing paradigm, but it's getting to be an issue when we're offered a single piece of REX armor that can be only one of multiple chosen paths. Heavy jobs and mage jobs generally benefit from the same stats but the light jobs are pretty clearly split between MNK THF NIN BLU PUP DNC RUN and RNG COR. Please consider either removing the rare tags on these armors so that we can have different sets for different jobs or consider coming up with a fourth category of ranged armor that can be worn by RNG COR, and possibly THF SAM and NIN.
Alternatively, you can edit light armor sets so that they give both ranged and melee stats no matter what path you choose. The only job that would benefit significantly from this is COR, and it's not enough to create any sort of imbalance.
Somewhat related, it'd be nice if you would add hybrid jobs onto multiple sets, such as BLU, COR, NIN and RUN onto mage sets and RDM onto light armor sets.