Just brainstorming here:

My proposed "status-hit" addition to the En-spell 2's could be removed and simply be a change to calculating of damage based on the initial casting, not on-hit. (I agree the status effects may be more of a deciding factor than elemental damage type)

More importantly,
What if my proposed "Magic Fencer" Job Trait had the additional effect:
While an En-spell is active, and the Red Mage is engaged with a target in melee range:
Grants "Quick Magic" (same effect granted by the Atma of Apocalypse) with an activation rate of 2/4/6/8/10% rising by tier.