Actually it goes back to original Nyzul Isle

Before that many jobs appeared together on many gear sets, WAR's with RDM and THF on say Dusk for example.

With the introduction of ONI, the jobs got divided into 3 groups, and since then, there has been little in the way of full gear sets that allowed most of the jobs on them, just individual items like Kudzu Aketon.

The Mini Add on's continued this trend, Campaign Battle's sets did too, Abyssea at least allowed some multiple job cross over (BLU PUP on Teal and Aurore, BST on Aurore and Pearl).

VW's Athos, Rubueus, sets, and now Adoulins too (althought like Aby BLU RUN PUP got on mage and light armour)

The only time we got the kinda job spread on a gear that used to be common at 75, is the Urja (AGI and ATK+, and Resist status) set.

I would also like to see the kinda's of job spread we had on particular armour types years ago.

Like how the Light armour type Doublet sets even had WHM SMN on them.

Granted PUP was limited for melee gear back then, so to be fair, as PUP is now on those types of set, keep PUP on whilst giving us back Doublets with all Light armour jobs and WHM RDM SMN.

And Vest sets which seem to be just light armour jobs now, but get WAR PLD DRK RDM etc back on them too.