In a game where one character can be everything this isn't right. Given the value of the collectables turned in for another crafting soul, you should eventually be able to be specialist in all crafting classes.

480 red scrips costs idk somewhere around 1m-2m gil.

I play the game a whole lot and I understand that the devs probably want more trading going on. It just feels restricting, I'd love it if we could have more than 3 crafting souls