I don't dislike it. When I was leveling up my crafters, I really wanted an extra boost but the FC actions were always for battle exp and either durability buffs or teleportation fees.

That said, we have items in the game that give personalized buffs (Squadron buffs, can be purchased through GC seals also I believe). They say clearly in their description that they override the FC buffs so they're equivalent, but are often stronger than the matching FC buff. Given these items exist in the game, and every player can manage that sort of thing for themselves, I don't see them investing in this kind of system.