Oh, so you know him personally, and he told you that? That's good for you. Otherwise, all of this is just your personal assumptions, which most probably have nothing to do with reality.
I did not make this up. It's clearly stated by Zhulin in one of his earlier interviews about them. Do you think it's for nothing that Tarasova states that they are looking for a new attitute in Nikita Katsalapov? Katsalapov is talented but he has his issues as do many personalities in ice dance.