yes the phalanxes in EB are way to resilent against missile fire. but I think to change it would mess up alot of the other stats. but it's not like the phalanxes are invulnerable to missiles completely, so I can live with it. For an example of how effective missiles are against phalanxes, just watch the movie "Alexander" and watch what happens when the Persians release a volley of arrows on the makedonians in begining of Guagemala.