Well you gotta think in the way a game developer has to think about things. You see if they change the FFXI formula to much people get turned off and don't wanna play it becuase they don't get that same feeling anymore.
On the other hand though they gotta try not to rehash the same stuff from last game other wise people will think of the game as an expansion rather then a completely new game.
So when it comes right down to it I think the classes are fine heck didn't have male mithra's might as well not knock it. Besides you know how much less female miqo'te there would be to look at if they put males in >.>