A (Probably Terrible) Idea to Help SCH class identity

[Rilifane]

Correct me if I'm misunderstanding but that sounds like AST is simply the superior healer, not only able to heal without dps loss but also heal enough to cover a fair bit of the co-healers share too? In the case of WhM/ScH the issue then is that there isn't an AST to shoulder the actual healing for free, so they can spam dps. While a WhM or ScH can shoulder extra healing, it takes a heavy toll on dps.

That sounds like bad design personally. Would it be better to extend the 1.5 sec cast time to Glare and Broil III too? There's the argument of homogenization or class identity, but clunkiness never seemed like a great identity for a class and they could differentiate in other ways. WhM in particular is incredibly immobile even compared to caster dps such as BLM and cannot avoid some clipping.

Aye, the main issue is that AST is too strong right now.
They can cover so much healing on their own and without dps loss that any comp with AST has a significantly higher combined healer dps. Even for average groups where you have a lot of unneccessary healing, AST comps are already better and the gap widens with better party play.
And there is the harder to measure value of safety because of the huge amount of baseline free healing AST offers while SCH/ WHM take more risks for their numbers. I can slidecast all the way across the platform to take an orb somewhere in Narnia or ferry mechanics on AST while on WHM I get annoyed if someone uses the one I've been slidecasting to for the last 15seconds or forces me to move.

WHM could certainly do with another instant. Or maybe up Misery's potency so using Lilies is not a dps loss over Glare. The resource is still limited compared to Ruin II but not punishing if you need it for weaving and it wouldn't "force" you to dump Lilies in transitions or overcap them when nothing is happening. Even my BLM feels mobile compared to WHM and that a class has clipping issues by design just feels wrong and clunky. SCH could use a little bump and AST needs to be brought down a bit. I just hope they don't do it by simply homogenizing everything.
I think it's not a bad approach that each healer has a different focus when it comes to optimizing. AST has MP issues and leaves little room for error unless running a high piety set, WHM has mobility and weaving issues and SCH, while mobile on demand, needs to reduce Ruin II as much as possible.
It's just that the latter two feel too extreme right now compared to the relatively easily solvable MP issues AST deals with.