Yeah, I'm glad it's 1 job per class. Otherwise they'd end up running out of Jobs making it useless to release future classes themselves. Red mage wouldn't make much sense anyway as they are swordsmen of a sort.

jack of all trades, which thaumaturges (at their core) are not. However they are to a degree into the arcane arts and it makes sense for them to take up the mantle of black mage even if they don't have access to elemental spells. Arcane magic for example would be a good substitute, as well as perhaps elemental spells of a different name, but with the same effect. Could also give them AM I guess. >: But as Conjurers are more in line with the elements, to take away all of their offensive spells without rewriting their entire history would be really ridiculous.