Yes, they should get rid of Kody and Janelle, too. They're all horribly egotistical nutcases, but Christine is strangely hungry for attention and she's so pathetic and petty. We should not be exposed to her awful personality, which exceeds even her physical ugliness. She is no longer a "sister wife", so it would be a perfect opportunity to get rid of her. Yes, Kody is narcissist and a completely useless, poor excuse for a man, but who can really blame him for not wanting to spend time with the three grossly obese wives he had? Two of them were always nagging at him and making stupid decisions on their own (living in an RV?). This show has run its course.
Review of When the Going Gets Tough
