I'd disagree and say its a personal decision with implications on her professional life.
Its cause and effect: she decided to be with her father which led to the postponement. The ultimate and overarching decision was to be with her father (personal decision). My post is about that decisions and no others because quite frankly all subsequent decisions are totally dependent on the first, regardless as to whether she or her team made it.
Let's be honest, Britney probably suggested the postponement, as a normal human would do given a family crisis. And even if her team "made" the decision, can you blame them?
I apologize if I misunderstood your post as the sentence structure and grammar wasn't clear.