Ya honestly, I wouldn't want them to make the system easier then it is I enjoy that its random, it makes the reward all that much more beneficial. I own every Blue magic spell available to BLU and some I spent hours to days on, I think it builds character and devotion too the class, and this way not just any shmuck can pick up the job and run with it. It takes dedication and time, and strongly frowns upon Abyssea burning, because good luck trying to get spells with a low ass Blue Magic Skill. If you want spells with success

1. Get Blue Magic Skill Capped
2. Wear your AF Gloves (these should never ever ever leave your inventory!)