That's a rhetorical question.
The real question is: Why the fuck doesn't a fucking NPC sell the fucking things?
Why the fuck aren't the new Automaton Attachments (from the last update months ago) synthable (or Synergy because that has to be involved in fucking everything) or sold by fucking NPCs?
I'd be leveling Black Mage right now, but ~3 INT and some shitty Job Ability aren't huge motivation. A bunch of new fucking spells? Yeah, that would do it. But fuck if I'd be able to get the fucking scrolls.