Almost all "moving capitals" in world history are veiled foundation of new states. Real capital cannot be simply moved. Because it would mean radical break of the state. Stable states dont move their capital only after catastrophic war defeats. Examplrs: France in 1940, Germany in 1945, Korea in 1945. After defeat they proclaimed some insignificant town as temporary capital. But didnt moved capital. Voluntary moving capital means some schock in state more than such in France, Germany or Korea.
So i think nobody didnt want to move capital from Moscow voluntary.