Actually, real life seminars are very intellectually demanding, as in study a lot demanding, not be very wise and experienced demanding, otherwise it would be futile to have young seminarists. Even D&D seems to agree with it, Religion or Knowledge:Religion are Int based, not Wis based. So why the need for such a high Wis? (Hint because reasons...)
Wis is the historical stat, mostly because its allowing actions moving through you (the gods will) rather than making your own power like a mage would