There's one thing that Blue Mage healing needs attention and that is with tank healing.
Unless your Blue Mage tank is doing a spot-on job with the unreliable defensives/occasional white winds/etc, chances are that you'll be casting Pom Cure a lot... And - just - Pom Cure for tank healing, because all of the other spells: White Wind / Strotram / Angel Snack / Gobskin are all suited for AoE healing.
Thank goodness that we have dps oGCD spells that can be weaved between the Pom Cures, else it would simply be a mindless thing to do to maintain the tank alive. I hope the next update adds more single-target tools, maybe some ogcd 5 star spells, especially if the tanks keep being as squishy and spiky as they are now.
I love the DPSer Blue Mage, though... The only thing that I'd change is actually turning the Condensed Libra into an actual job gauge mechanic that dynamically shifted through empowered elements.