Pictomancer is not the issue.

[Infindox]

The theme of Red Mage is, historically, to be able to cast both White and Black magic, but not to the same depth as White Mage and Black Mage, Raise is typically a fairly low level spell, with a more powerful higher tier version, occasionally named "Arise", that raises targets at full health(there IS an issue here with Healers never getting an upgraded rez spell, because such a spell doesn't gel with how FFXIV plays), so Red Mage has access to the low level version, with Dualcast being an extra ability to reflect their duality and give them something to make them stand out more than just "jack of all trades" so it can hold up to endgame, it's a balance patch more than anything, just a very logical one that makes sense with how the job flows.

Having Verraise(and by extension Vercure) is objectively the theme of the job, or more accurately, it is included in the broad umbrella that is its primary theme.

I put that in my "no thanks" text because someone on here point that out and one time, and yes you are correct.