I think the original plan by BB was to get the delivery task tied and keep all contestants nominated so that Mahira,Shefali can go out by public outing , while Devoleena gets saved and may be Rashmi going to secret room . The task was introduced mainly to change dynamics esp among the Bahu gang . If connections played a part in eviction later then Aarti would have been saved anyway by Shukla or Asim ! Mahira being saved although expected came out of syllabus and Devoleena has to take the fall . Bigg Boss took a risk and it failed badly