The ROC [Russian Orthodox Church] currently claims exclusive jurisdiction over the Eastern Orthodox Christians, irrespective of their ethnic background, who reside in the former member republics of the Soviet Union, excluding Georgia.
Politics and religion have always been one and the same: the reason there are two creation myths in Genesis (and many other duplicate tales) is because authors from both Israel and Judea wrote them, often with the aim of elevating their interpretation of Yahweh/El and lowering the importance of the other kingdom. We have Protestantism because an English king got pissy.
This is no different. The Russian church claims dominion over Kiev and they are rejecting that, much moreso than they have in previous years. The ROC is acting as one more arm of the Kremlin and trying to use religion to spread influence.