As I mentioned before, I speculate that the reason that we don't have Crafting yet has to do with the fact that they removed Old-Type Weapons from the NA version, and implementing New-Type Crafting (which was added in Episode 6) would not work well with the current state of the game since the lowest level of a crafted New Type Weapon (which all Weapons in the NA version are) is the equivalent of the 13☆ weapons we have and the highest level of them are close to 15☆ weapons, so adding this would be a big balancing issue.
Honestly, they should just break Crafting up and release it in pieces with the Weapon portion being the last thing, but they probably want to release the whole system at once.