Maybe RDM need....

[SaberMaxwell]

But you said it's only a cure 1?

Healing is done by Healer when raid-wide aoe happen anyway and RDM lose dps if they forced to heal themselves often.

It is only a cure 1. And what you outlined just there is why vercure doesn't need to be included in your suggestion of things that get turned off for a DPS stance. Vercure is RDM's only answer to second wind/bloodbath etc; it has no cooldown, but in exchange for that using it is a dps loss except when the boss is not around to be targeted, in which case it becomes a DPS gain allowing the Red Mage to prep a dualcast for when the boss returns to the field.