She’s sure taking heat on FaceBook, but that might turn into ratings for her shows too. I have no idea about the editing, only that editing is a large part of all shows and interviews and that editing can and does shape shows and interviews.
I also think that Kate’s whining and griping to magazines wasn’t helpful prior to the this episode’s airing, but the editing was already completed -— the series has been for sale on TLC for at least 4 weeks.
I think you’re most likely right: Kate Plus 8 is up for a contract renewal and perhaps TLC wants to drop her or get her and the kids at a cheaper cost.