Why Why and Why is it soo

BB nomination task was like.Why only 4 nominated contestant to save Jaan, Pavitra.Like why it in itself sounds like a shrewd move by BB.

Jodi selection or maybe decision seemed too predictable

1)Nikki is a despo and can do anything to save herself in-turn definitely Rahul will be nominated.Rahul SAHI tha lekin Nikki bhi GALAT nahi thi as she had to save herself and that was the only thing that crossed her mind cannot blame her.Only one regret she should have given him a fighting chance

2)Naina and Shardul well played.Loved them both but I think they both haven't opened their cards yet.I think they both deserve a fair chance.Felt real bad for Shardul.

3)Abhinav and Rubina-Knew Rubina would save Abhinav but loved their convo.

Just had a wild doubt in case of Shardul and Naina if it was Pavitra and Jaan who played the task, would BB take the same decision to nominate both or he would have saved them and yet nominated Naina and Shrardul. It kind of looked like a planned nomination however Eijaz Khelgaya by saving Jasmine.Anyways BB hi jane woh ky soch raha hai.