Why are there no multi-hit skills on Sage?

[Shurrikhan]

I don't think it's designed to hit as many times as possible in order to heal. It's like expecting a WHM's Regen, an AST's Aspected Benefic, or SCH's Eos' Embrace to do all the healing. Why does Kardia suddenly need to be fancier than any other healer's passive healing? That's what it is, by the way. Passive healing. It just encourages DPSing rather than allowing it.

Okay, let's be clear here:

No part of the suggestion that, hey, maybe the currently dull-as-grass Kardia mechanic could actually gain some manner of control and variance as to be more interesting precludes other job's passive healing doing the same. SCH could easily have a pet MP bar and a stronger Embrace that is not continuously sustainable and is generally best used manually; AST could regain time manipulation as to be able to extend or triple the tick rate (at cost to duration) of its HoTs, giving them some further interaction; WHM could duplicate bonus healing onto its targets affected by Regen whenever they use a ST direct heal, or emanate that bonus healing to allies near the Regened recipient of an ST direct heal; etc., etc.

As for Kardia being dull because 'it was supposed/designed to be' dull... Then should that be considered a good/sufficient design?

Like, you can say this pistol is being used as a tonfa because it's supposed to be used as a tonfa, and you could be wholly right, but... why, then, decide to use a gun instead of just a tonfa? If SGE's tool was only ever supposed to amount to a passive regen that further punishes the use of GCD heals / extends the curve SGE's DPS-per-healing-required... why even bother with "deals damage on hit" for that?

It's just a bit of a Chekov's Gun situation, alike to RDM only ever using its sword as a convoluted equivalent to Foul, rather than imitating any of the job's more traditional versatility. And it seems especially odd to use the blandness of any one or more healers as an excuse then to shut down even conversation on making a core mechanic of any other healer less bland.