The requirement for 2 lilies is just a handicap so that players don't spend them all on Afflatus Inspiratione and not have any lilies to heal with. I see what you're saying about Lilies only being used to buff though. I suppose you could set Afflatus Inspiratione on a 60 second cooldown and instead just make it more powerful, but then that kind of defeats the purpose of being able to use it often to break of the monotony of Glare-spam. I'll have to play around with this some more... Thanks for the feedback!
Edit: After considering feedback, I've decided not to overcomplicated things for myself and others and just give White Mage a simple 1-2-3 combo. I wanted to keep things "reasonable" for Square Enix since I know they love their 1-button combos but honestly, yeah it's better to just do that then to add superfluous buffing. It makes more sense for White Mage to remain straightforward. I removed Afflatus Inspiratione and instead made it so Holy II and the three hit glare-combo reduced Thorn's cooldown.