Exactly my Point !!!
Aruba is a great port of call, I know for sure it has to be something about $$$ problem or Gas situation. During my honeymoon my last port of call was Aruba and we used to have two days at sea enjoying the ship. I remember that the reason to drop Dominica was that a day at sea is cheaper so why not bring Aruba to the picture??
Maybe they can add another day at sea I think that most people will not be against a little extra money if the port of call deserve it...