Housemates who walk only normally get a short interview with Dermot and definitely not a week of BBLB. Mind you can you imagine if they had had her and Kemal on all week.
It was her choice to walk so she doesnt deserve to get the attention an evictee gets. Walking has been done before she she is nothing unusual.
As for publicity, I think there will be very few of them this year who have more than 7 1/2 minutes of fame let alone 15 minutes