I’m still confused on what job you are actually looking at
The core filler rotation is “casting paint” but done in a creative way (you cast RGB to get white then flip it to cast CYM to make black), the rest of the rotation is actually painting things that you then use
Creature motif- paint a rain of poms then a set of wings to make a moogle, then paint a claw and a maw to make a madeen
Hammer motif- paint a hammer to bash your enemy with 3 times over
Landscape muse- paint a star streaming landscape to empower your spells and unlock two large finisher nukes representative of the fact that the power of these nukes came from you painting a landscape
Over half the job is using items that you paint, I don’t understand your criticism