Seems we have an answer on the 'lore' vs. 'new player friendly' NIN option ^^

[ziddyt]

There is no precedent. This is the first post-2.0 job. It's the first and only job that ties directly into post 2.0 lore. There is reason to believe that might have had some effect on the class and/or job requirements.

Regardless, nothing you just said proves that you weren't wrong. It is different, if only slightly, in contradiction to your post. So yeah, black and white. It might be less so if you had included any leeway in your previous post, but you didn't.