The order in which you unlock new spell, weapons, ect. is irrelevant if you end up with largely the same kit. And yes. FF Tactics is not all that different from the main series. They have never changed the basic rules in those games. All they do is add a little extra stuff and then remix the whole deal. Ever within the same game the use the same enemies over and over again. Most of them have 10 different versions of the same enemies. A normal one, fire, ice, water, earth, poisonous, bigger, non elemental, all a little stronger as you move through the game. The series is suppose to have some of the biggest production values in the games industry, yet it cuts corners left and right like a budget game.