Valid question: Why was Rubina bashed badly - Let us discuss

Lot of Rubina's fans are questioning why was Rubina grilled badly while other went lightly. I think this is very valid question. My take on this.

• I do not think Rubina was grilled badly. It was kind of due for long time. So far, Rubina was showing her superiority complex, but was in the form of game/task or normal conversation. But this week she went to next level of superiority complex.
• Rubina actually challenged BB authority and ethic. When BB brings somebody, they assume all contestants are equal with no discrimination(at least on paper). And if Rubina tells a contestant that it is her house and she can throw his/her anytime, then it becomes a big question mark on BB. I do not remember anybody saying this in any season. At least not shown.
• Rubina was on forefront of bullying Rakhi and Arshi along with gang members.
• I agree with Salman's interpretation as Rubina did not answer what did she mean by showing pinky finger.
• Rubina is colors face, she is almost a winner. Can anybody justify why should Rubina be a winner if she does not want to participate in task, mostly sitting, no leadership quality, no fighter spirit, did not put any effort to make any angle. If she behaves classy, and portray herself as nice person, then at least she got one quality for channel to show in her winner. But Rubina behaves like vamp, Channel is asking her to behave.
• She is grilled mostly because she did more wrong, becoming habitual offender, ruining BB game.
• With limited time of show, channel cannot grill everyone for 20 minutes.

I believe amounts of Rubina's bashing was justified.