I know they're there to be used, but blessing items just costs way too much. Once you can learn the spell yourself after the festival it's great, but spending 250 gold just to bless one bomb is brutal on the wallet.
IMO using vitality potions etc on allies also just feels bad, I prefer to save them for activating pink scenes, especially chaining pink scenes after a hydrangea fight that I've used a blessed water prior to. Star shine solves the ally issues as well, so after the festival, items you've exhausted on them feel redundant, and using too many mutated spores prior to the recipe bonus you acquire post-festival ALSO feels bad.
New game+ comments are fair for hard mode (I've come around to normal with hard mode as a ng+ mode), but doesn't really solve the problem first time through.
Minotaur is easy, but yeah, ultimately I do leave the demon alone until closer to festival day. It's still inconsistent though because of weak allies, but at least if left later, (on normal anyway) you can minimize the rng by having Aura utterly annihilate the demon with offensive stance double criticals.