So the advantage of range should be what exactly? Since they're supposed to do inferior damage yet have inferior defenses why should they be played again? If a melee is running with an intimitank or with CC and himself is in no real danger of getting hit should he then get a damage debuff since he's not in danger? There's a reason why tanks in other games don't do as much damage because if a class has superior damage AND defense then it invalidates everything else. Is that what your suggesting happen here? If your concerned about things like kiting then there are simple solutions like putting a snare on manyshot or giving bosses an undispellable and un-FoMable snare.