According a Russian publication (I place source link at the bottom) to St. Petersburg Research and Development Institute "Lenmetrogiprotrans" (LMGT) general director Vladimir Maslak said not enough tunnelling work in Moscow has put Metrostroy is in difficult situation financially.

He says there is need to preserve such a powerful organization specialized in the construction of the underground. 

https://www.spb.kp.ru/daily/217165/4265454/