Sure, and crafted stuff comes from....?
While not stated, it can be easily assumed to be mythology.
Lets assume they run the same way ilvl70 crafted gear works.
Meaning that each piece will require at the minimum 9 ToM items. Meaning 1125 mythologies for one piece, compared to 825, 495 or 375.
I really doubt more than 5% of the playerbase will have more than 3 jobs ilvl90ed out, and that's being generous.