leeches is annoying but i've found the fairy more than makes up for it. The only part that is a little sketchy with a scholar is the green dragon in brayflox but still totally manageable.
now that your fairy has a cleanse probably very easy, just cleanse the poison at a few stacks and the damage drops back to easy again. Keeping them on obey is np too they still auto-cure and everything else is just one button when you want the effect. No targeting or anything required

Cards aren't a problem either, the way it's set up your slowly adding complexity to the system becoming used to it bit by bit so manipulating cards develops naturally. I will say though gravity and malefic 2 are far too high. Astro soloing and AoE are beyond pathetic without them

WHM mp can be a bit sketchy before shroud but their passives are designed around mp conservation. It may be a bit of a harsh lesson for some but learning how to conserve mp is important for WHM and if you do it right you shouldn't have any problems in the earlier dungeons. The amount of times i've been paired with a white mage that exclusively uses cure II then complains about mp is far too many

shield oath should probably be 30, pld is really awkward during the part it doesn't have that

outside of that the only one that bothers me is DRG should get both the fang and claw skills together. Getting the second one currently feels like a downgrade