Wow Dave, have never had the opportunity to port in Antigua and it appears that may not be on many cruise lines itinery with all the recent goings on there. I guess the lines have to do what they feel is best for them and the paying customers. I don't care where you are; in the US or some small island, no one should feel they can travel anywhere not knowing if they are really in a safe space. Not to say that trouble dosen't come looking for you.
There certainly many, many areas of each island paradise that just are not safe. Its such a shame to see these things happen.