I don't think it would give players of the same job unfair advantages since they are there for everyone to use. However, if say, a Warrior made a two combo macro (BB and SP), he could alt-tab and check the scores of last night's game whereas a MNK or DRG still has to worry about positioning. So in that case, it would be an unfair advantage given to the Warrior. I'm sure that can play out in several different cases. Just seems better to make people have to actually try to play, rather than press a button and watch your character do a bunch of shit in a fight. Can't imagine that would be much fun.