AST can ignore Accuracy requirements

[Cynfael]

If you want to say a healer that doesn't DPS in a party is not contributing then I would say that all the BLM, SMN, and any other DPS or tank job that can equip a cure spell and doesn't help heal with their DPS/tanking are also not contributing. Food for thought.

If DPS and tanks attempting to cast heals helped push the goalpost closer, that analogy would be valid. However, because completion of objectives is dependent on total party DPS, it's almost always not.

Healers contributing DPS when they can snd should do so is about supporting the party's efforts; dedicated DPS blowing their GCD timers to cast redundant heals is not a benefit to the party. This is why AST will (or should) use their DPS tools as appropriate, especially since they have DoTs without a hit check.