Healer Area of Effect revision

[Archwizard]

I believe that giving the healers thematically appropriate effects is a step in the right direction when homogenizing. It can give a little spice to the AoE buttons healers have. As it stands, WHM is the only one with an added effect while the other healers just have damage. What would be your idea instead?

And while I can agree about giving all healers "thematically appropriate effects", they don't all necessarily need to be hard CC.

Lemme put it to you this way: AST (as Time Mage) and WHM are two jobs I would fully expect to have some control-based effects, because of their history across the series; WHM as the early adopter of any defensive spell including damage prevention like Silence as well as being the archetype among healers, Time Mage as the eventual repository of such effects as Slow, Stop, Immobilize, Disable, etc.
SCH, put down as a hard maybe, you can justify one way or the other.

SGE however, is a job that we actually have relatively little thematic backing for. Yes, Sages exist within the series, but generally as advanced Scholar or Red Mage types, while 14's carves out a completely oblique identity that only shares the name. For instance, the most iconic character to use the Sage title within the series was Tellah, who famously was able to cast Meteor at the cost of his own life; even if Comet was in the cards for any healer, we wouldn't even consider it for 14's SGE because it exists outside the purview of SGE's abilities.
We can't really say that CC is "thematically appropriate" to the job because it's still in the early stages of what it can and cannot do -- you're assigning them Paralysis for the sake of giving each healer a CC, but not necessarily because you know it's fitting for 14's SGE specifically. This isn't to say "maybe some other CC is better for SGE, you don't know," but rather to pose the question: Is it even permitted, in your mind, for the devs to create a healer who thematically avoids CC?
Because as we can see from the existing paradigm, it's not some bare minimum requirement of the role. We see BLM as the one Caster who doesn't have rez support (or any utility outside of Role Actions) because it's designed to be selfish and falls outside of its theme since that would classically be White Magic; same principle, different role.

Even on the premise that you were shooting for some semblance of parity, the flaw in your reasoning is that no two of the CCs you mentioned were created equal. Yes, you can try to tune their durations so a 20% attack slow or 15% accuracy loss from Blind mitigates approximately equal damage to a hard Stun over the course of a trash pack, but ignoring for a moment that enemies have different resistances to different status effects (with some bosses even vulnerable to stuns that wouldn't be vulnerable to slows like Arm's Length), and ignoring that a trash pack may die well before their Slows or Blinds run out (so they didn't actually mitigate as much overall) versus a full bevvy of Stuns in the first 10 sec? Each one of these CCs is at their most powerful in different circumstances, with Stun able to act as an interrupt on powerful attacks that Slow won't. Paralysis is the next closest to this capability, but it's unreliable due to being RNG, and we still don't know the chance of its activation. Slow and Blind can't hold enemies in place when they're grouped for optimal AoE; hell, Blind is RNG just like Paralysis but without the same lockdown, so it's arguably the worst option here.
The list goes on. The only two types of CC that are truly "equal" are the ones that are just reskins of the same type of effect (like Stun vs Freeze vs Knockdown).

Like I said, there are thematically appropriate things that are untapped for each healer, like SCH throwing out a Spikes effect or SGE's "heal by attacking" theme; there isn't just one way to tune them to match up to Holy's stun window in terms of either free damage output or added defense/support.