Well Oghma isnt wisdom, she is Knowledge... Intelligence and Wisdom are different things, and Knowledge = Int, according D&D. Sirona is FfH Erebus god of Wisdom, according Kael's set. so Oghma is not wisdom by all means, just plain knowledge, studying, intelligence, magic, and somewhat unhuman and snobbish, while wisdom driven sirona is much much humane.
Kadhi are led by ambitious wizard Kadh ("Followers of Kadh"), that percieve his own interests of power and knowledge, while he is Oghma worshipper so tend to remain neutral side, instead getting AV side. His power and manipulation through summoning and magic of those plannar creatures and thing that Oghma haven was battlefield of gods, is enough for actually Dark Fantasy game to bring them to a scene as side that values knowledge most than all, but , actually untolerable, snobish and somewhat evil towards normal common human beings. Gremlins and djinns are also not strict hight fantasy, and there is tint of dark fantasy to make them hostile toward "puny humans"
If people like it why not to add it, its also differs from all other civ material that currently exist.
Really trying to convince you, because it seems (and seem not only for me) interesting idea, and you are main modmod dev and drive.
Idea seem original, and can get some changes on way, but surely Oghma creatures can fight human under possesion of some very powerfull wizard-Oghma champion-summoner.