Sage is almost a legit healer. It has a bunch of multiplicative cooldowns that allow you to spike healing when necessary if you plan ahead, and it almost has a dps kit to boot. Even the simplest WoW healing class was still deeper last I played (been a while since I escaped that treadmill), but SGE at least proves that the XIV design team is capable of putting together an interconnected healing kit. There is a tiny chance that I could stand to play SGE in raid, though I'm still highly skeptical of encounter design.

Saying that Sage is "too busy" is wild though. Let there be complex healers to keep the role interesting; there's still SCH and WHM for intro healers.