I've said it several times today, I believe it was a tactical move but also that part of his reason is that, with Janice there, the rest of them don't have to bother mothering Chloe.
I do think he tactically chose Janice to look good too - but I don't object to that as they were put in a gameshow position, were going out live, it was the best opportunity (especially nearing the end) to sell yourself.