How can she expect to join God in Heaven if she was not covered with the. Blood of Jesus Christ? That is the only question. that matters.
Well, for one she was Jewish, and we all know that Jews are steeped in the blood of Jesus Christ.
Jesus redeemed all (including atheists) by His death on the cross and His Resurrection in defeating death, and our salvation is based on our acceptance by Baptism and our faith in His Truth and not dying in mortal sin.
Many are called, but few are chosen.