seemingly random job placement on gear

Why is SMN excluded from these new pieces:

Demonry Core
[Ammo] All Races
DEX+4 Pet: Accuracy+4
LV 88 MNK RDM THF BST RNG NIN DRG COR PUP DNC

and

Oneiros Cappa
[Back] All Races
DEF:14 VIT+5 Pet: Physical damage taken -3%
LV 88 WAR MNK RDM THF PLD DRK BST BRD RNG SAM NIN DRG BLU COR DNC

But are put on lots of nice mage pieces that give int/mnd/MAB and magic acc which we have no real use for, but heres two really good pet pieces that SMN is off but several jobs WITHOUT pets are on. This game is lacking in Pet: + gear (that isn't JSE) as it is so we feel the pinch ever more when left of some of the few pieces there are.

i agree! there are a lot of gear pieces that make me say wtf? why is this job on it but another is not. Just for ex... pld and war can use the same heavy armor types... why can't pld use a kirin's osode but brd can?

and that -damage belt too...