@niwaar

WHM gets proshell. Its directly from Conjurer. Everything Conjurer has, WHM will also have, every spell and trait. So WHM's protect will be better than SCH's as it will also have shell. Its the same for every job. They have every skill and trait their original class has as far as we know.

To be entirely honest not many cross-class skills would do some classes any good. BLM and WHM get almost everything they need from their base class there is nothing from any other class other than other DoM That would even help WHM. They don't really need anything else. BLM gets a cure via Arcanist which is a good thing, but again other than the crit+ from pugilist. I don't think anything else would help.

PLD would get useful skills from pugilist, however. It has higher MND by default than any other DoW class. Its cure is higher than the rest. PLD getting pugilist skills would only make it more unbalanced in PLD's favor. I would rather balance in this game since FFXI never had any.