Blizzards fix for the melee vs ranged problem was figuring out ways of making it even. Like say for instance. Theres some fights where melee have to run away from blast casted by boss, while ranged have to dodge fire he spits in the back. etc.

Also, melee have the advantage in big movement fights dps wise, becuase they don't have to stop attacking to follow the boss and such, whereas ranged have to stopcasting to move.

The fights usually go back and forth, and in the end, you need both ranged and melee.

And then theres Utility that you have to take in consideration, like most melee's have short cd's on there spell cancels. whereas you need ranged usually for kiting fights, cuase they usually have slows, and "jumps" and such.

Sorry if some of this has ben mentioned. I didn't read the whole post XD

But ffxiv is still early, and theres not much important utility so far, except for caster buffs. and thats most of the problem, melees haven't developed their niche. yet.