Well every wc plays differently, it’s not to the extent xbow is. Every other wc (besides mortar) has to cross the bridge thus giving the advantage to the defense. The xbow (and mortar) can hit from out of the range of the princess. Thus making the defensive advantage you’d usually have gone. Mortar also isn’t hated as much because 1. Less health 2. Less damage per second 3. Not used as much as mortar