No... Their equipped items are staves, radicals, and scepters. Traits of the Thaumaturge and Conjurer JOBS (which are limited to those weapons) are the shape of their AoE casting.
I'm sorry, but you don't work for SE, you don't have a time machine, and I highly doubt you are some type of spy... You can speculate but there's no way you know exactly what SE was intending when they created the armoury system. It could very easily just mean "one weapon per job", which could be a big failing point to a lot of people.
I mostly like you, I like a lot of your ideas, and part of me wants to get behind them, but you really come across as too forceful with your opinions. Your opinions are not facts.