Chloromancer had skills that healed while dealing damage, similiar to Assize, but also buffs and debuffs they had to apply for party members to get additional healing.
Think of things like Bloodbath but as an enemy debuff: every time a party member hit the target, they'd get healed. These debuffs as well as buffs that increased the healing taken were tied to dps spells so not dpsing was definitely not an option. DPS and healing kit were firmly tied into each other.
Applying debuffs to the target, buffs to the party and healing were all tied to dpsing in the first place, it didn't function as a "pure healer" because pure heals that didn't require dpsing were limited and expensive.
One thing Sage does have in common with Chloro that it gets stronger if you layer skills properly but not to the extend Chloro did.
I was really hoping for Sage to be like Chloro but really, I should've known better ... of course a "dps healer" would still have to be braindead and 3yo friendly, resulting in not being a dps healer at all. Slap Kardia on something with a tank stance, call it a day in the absolute majority of content.
... now I'm weeping.