I don't think the comic book you reviewed was designed to be new reader friendly. My assumption is that it being a series running concurrent to a long series of books so it would seem more a companion piece than anything. I say assume because as George W. already said the ending to that series of books was ungodly bad so I have no desire to jump back into this plotline.
Legacy, which has been canceled, is a very good new reader future Star Wars comic I think. The only returning character is the ghost of Luke Skywalker so that helps.
So I would say that some Star Wars comics you can jump into and others not so much which is the norm for any comic stuff really.