Trying to use logical arguments with you will never work, because your thinking process is passionate and biased to defend Team Tutberidze.
She will be defending Eteri till the day Alina or Anna leaves (if that ever happens) and Eteri acts crazy as she did to other girls.
After all, to Eteri, girls coached by her are her products (fast moving consumer goods, to be precise), not individuals who have control of their own future.