I stopped caring about trying to always get perfect Divinations too. I used to enjoy the feeling of getting a lot of good draws, to go with the salt of getting multiple bad draws. Nowadays, there aren't really good draws to break up the monotony of being apathetic towards firing off a 2moon 1sun Divination, due to your draw and redraws getting you Balance -> Bole -> Balance -> Bole.
The Spire would need to be adjusted due to a lack of TP to regain, but idk, maybe buff DH instead? But otherwise I like that idea, that any card can be arcana'd as insurance against bad luck. That would make sense as an ability that an Astrologian in the world of Eorzea would develop, as opposed to developing a sudden case of selective amnesia towards all time mage-related abilities...