I've never understood why White Mage wasn't the buff healer? Like, where was Faith? Bravery? Their absolute insistence on all the healers being able to do everything means no one is good at anything. There are no strengths and weaknesses, meaning the one that can do both becomes the strongest.
It has absolutely perplexed me, as I started out as a White Mage for a reason. I wanted Iconic Elemental Power combined with Unsurpassed Party Interaction.