Meriting all combat skills will not have any job not using it's main weapon or one of it's 2 main weapons in any instance when they are trying to put out max damage. WARs even though they have a ton of combat skills would still be using GA for damage. THFs will use daggers BLUs will use swords BLMs wont be nuking with divine magic and things won't fall up when you drop them. However, someone who has taken the time to level and gear any one of their jobs will not have to choose which ones they have to put on the back burner because they have already spent all their combat and magic skill merits. 16 skill points isn't that big of a deal on paper but to anyone who cares about being as good as possible on all their jobs its a GLARING imperfection.