Nice graph, showing scale of Russian naval revival post 2007
Of course, it`s not that Russia built 200 ships in 10 years, simply number of existing ships/subs in operation is many times more plus several dozen new ships/subs.
They didn`t "choose" to scrap anything, they had no choice, they didn`t had the money to maintain such a huge industry for in reality such a massively oversized army Soviet was. It was simply unsustainable economics.
Since Americans have always said that ABM is shield is due "Iranian" threat, Russians show classy sense of humor by naming first purpose built anti-ABM ballistic missile "Sarmat" = Sarmatian, distant steppe cousins of Persian Iranians, here is a new meaning of "Iranian" threat :enjoy: