With ranged attack not being a straight loss, the tax just becomes more and more ridiculous.
SMN is a physical ranged in gameplay but has a much stronger support than a support DPS.

MCH has even less support than RPR, BRD has niche support and DNC somehow gets the best treatment.

Nothing justify ranged tax since ShB:
-You would still have 1 caster, 1 melee, 1 ranged and a flex spot. Always has been
-Due to mechanics being quite easy to melees and casters having more mobility, double ranged never brought any advantages. It's the opposite, a second ranged is always shotting your group in the foot.
-Yes, the skill floor is lower. But there is no job with high skill ceiling other than BLM who remains far from complex.
-The whole situation just forces a reward ceiling on ranged. The jobs are not as efficient as melees by design.

For the sake of simplicity, we'll say the ranged are 90% efficient compared to a melee job.
That becomes quite frustrating when you decide to gear up said job but you know you'll only get 90% of the value.
This is also frustrating when a melee can afk or forget an important mechanic of its job but still outdps a ranged.

It's old design, it should have died 3 years ago when mana song and tp song were removed.