It seems unlikely they would let any political divisions or legitimate grievances go unexploited. It is their cultural core competency for centuries. That does not mean the greivances being exploited aren't valid, or that the parties themselves don't aid in the fracture so they don't have to worry about competition with parties whose ideology is too close to theirs.

Edit: This is reductive, Russia has tons of culture besides this trait, but it is the fundamental strategy that allowed a landlocked state with no natural borders to survive and expand. When you learn a strategy to survive or cope with adversity, it sticks long after it is beneficial.