Lilies being eaten by an attack skill would break the design of the system. It's actually a pretty well balanced and clever mechanic that is meant to mimic an instant cast DPS skill (where the dps portion is delayed). Aka as long as you can get your misery off, every lilly you eat is already a 250 potency dps skill (more if multitarget misery). If there are times where you don't need to heal you should still use an afflatus skill to weave your ogcds into even if it's overheal.
In essence, afflatus heals are equivalent to the SCH ruin II with higher dps and an actual heal attached. It's so much better than ruin II that it comes with the major drawback of being a severely limited ressource.
