How horrible that you cant gear 9 jobs in a couple of months.

How dare they create a game where gearing a Job with the best gear available takes time and dedication.

A cap per job would be incredibly stupid, as i would no longer be able to Tank AK for Tomes to gear my Monk with, forcing me into DD queues and leaving my friends without a Tank.
Seals per job would be equally stupid.

If you don't like the current system, go play something else. This kind of change would be horrible.