Strange story this. IIRC, there was a thread a few days ago, sorry I can't find it, but some posters were discussing how they heard SC comment to CS following the results something like "happy now."
If it's true that SC had to track Laura Conway down and bring her back to the studio, and persuade her to remain in the show, would part of that persuasion be a promise that they would be kept in the competition?
And if there is any truth in that proposition, how would SC know that the Conway Sisters had survived the bottom 2, before the results were announced.