I can see this working for BLU split into 2 for DPS and Healer, Healer gets moves like Angel Whisper to revive people and an AoE heal White Wind with a potency increase depending on your current HP (like Spirits Within for PLD) among others. DPS has a huge plethora of abilities for SE to choose from, not mention shared utility spells such as Magic Hammer to regain MP and Frog Song for the optional CC

So yeah I think its a good solution for putting BLU into FFXIV