They don’t recognize Crimea and Taiwan as well. What is your point?
Ever thought that maybe the ‘Stans and Chechnya have had enough of being used by Russia as expendable cannon fodder for the illegal invasions of former SSRs that insist on being independent of Moscow?
Maybe they’re remembering the key word “independent” in the setup of the Commonwealth of Independent States. If Russia wants mobilisation to prop up its illegal annexations then Russia should use its own citizens from St and and Moscow.