I wasn't "restricted" in addressing Jack's death -- it just wasn't relevant. My brief was to tell the story of what Picard did between the Stargazer and the Enterprise, and Jack died a year or so before the ship was lost, since it was when Wesley was five (per "True Q"). So the only Stargazer-related thing that was relevant to my book was its actual loss.
Really, though, Reunion's version of Jack's death is hard to reconcile with TNG canon, because canon says he died on an away mission while the novel says it was during a spacewalk to repair the ship.