I can't find the link right now, but it was the dying father's wish
that she not be told. He didn't want her to know until the Big
Brother thing was done.
Here's another article saying she was in on the decision beforehand.
http://news.ninemsn.com.au/article.aspx?id=269236
And, Big Brother website has a note from her brother saying, in part,
"Emma and I have maintained a close friendship for many years. We have previously and recently in 'lock down', discussed the possibility of dad’s death thoroughly. I can confirm with absolute confidence that Emma has prepared herself and her views have been considered in the family’s decision-making process."
Also, "Rest assured that the family has made arrangements to postpone dad’s final service until Emma departs the house to ensure Emma is still given the opportunity to participate. As you are aware the funeral has already taken place however the family will reconvene with Emma to lay dads ashes to rest."
The producers of the show are only following the family instructions.
ers