The Problem with Healer Feedback, and requested changes

[Archwizard]

I've... yet to see a frame drop just due to a physical animation, or for an animation to stutter over load. And I've mostly played on a laptop. Particle effects, sure. But the actual physics, such as when particle effects are culled via the graphics options? Have not seen that.

That's not what I mean. The individual casts aren't going to be the sources of lag, barring particle effect calls.
A character's entire animation moveset must be loaded into an area at once in anticipation of that character's actions, and each moveset has different file sizes which means different server load. Now while I'm not looking at 14's back end, I assume that part of the "change jobs with weapon swap" element of the game is calling different available movesets so that only the relevant/active one is loaded by the game while in use (a tricky advantage of being locked into a job while instanced) in order to reduce this server strain; it's also why there's a slight delay every time you swap weapons.
If the nouliths themselves have four separate movesets in order for each one to be separately programmable, then the presence of a Sage in the party is 5 entities on the field, each with its own moveset, which is a significant multiplier on server strain compared to most jobs that are only two or three.
If all four nouliths share only one moveset, then that's only two entities as with most other jobs, but it's a significantly larger moveset to account for more possible variations of each individual action, which might cause problems loading the individual entities throughout their presence on the battlefield.

Which is why a limited number of pre-programmed actions is much more plausible than 4*(2^x) animations where x is multipliers on formations.