Seems like you'd get rid of a lot of button bloat just making Cure 2 and Medica use lilies for instant casting. I don't think anyone playing effectively is "saving lilies for later" when you need to GCD heal, and Medica 2 is your downtime ability already.
Scholar has a similar issue where both the fairy gauge abilities feel pretty superfluous, I'd much rather Dissipation was redesigned into a stance where you actually consume the gauge, changing the fairy abilities into something else. They are just dead buttons during Dissipation anyway, hence some of the biggest complaints about that job.