the question is not why monk, it's more why give them dex as main stats, they aren't a ranged jobs, every video we have from this class show us a melee class... it's why change the basic rule of the game now?

actually i already know the answer: because they can't add a lot of class that need dex as ranged physical dps.
in FF jobs used in the past, most of them are melee... but that quite normal since it's generally medieval fantasy...

what scare more than all it's: in the futur, are we sure that they simply don't plan to add armor that will be for monk/ninja/bard simply because it's easier for them... loosing more choice for the glamour. i will not be surprise if it's not already the case with the futur armor with the new tomes.