it was so long time ago (~2019, when there were a lot of rumours about Mozer wanted to split up M/G and P/K and to get P/G, but they refused)I didn't know that Mishina and Boikova had been criticized by Mozer. When was that? Was it about their weight? Do you have a link to an article?
I‘ll try to find (but I’m not well in Russian). In comments under the article, you can see that in Kalugin’s opinion Mishina has a wrong type of muscle fibres (they’re ‘wet’), and such girls are hopeless by the end of puberty (and their weight should be 38-40, Mishina has 46).
Mozer often criticised Moskvina‘s pairs, here for example (no soul, no expression etc.):