I still seriously consider, that you are not satisfied with the idea behind the whole river class navy they have made
Too small, not enough power and testosterone
It is all about lessons from the past, when the Soviet, or Imperial navy, had a real problem obtaining a privileged position at functionally any theatre of operations, even if it was bigger in general numbers than the opposing forces. They used to be divided into different fleets, distanced and separated, easily overwhelmed by the opponent, if needed.
Plus they lacked the spirit de corpse, but that is another story and a problem they need to sort out.
Now, they can concentrate dozens of additional starting platforms for universal missile systems any time they need, any place they want.
The modern Russian Navy can relocate dozens of hulks from the Baltic, Barents, Caspian, Azov, and Middeterenian easily.
If determined enough, they can push them along the NSR, from the Western theatre to the Pacific one, in just the same time USN would need to regroup the strike force from Atlantic to Pacific, and park them at any place, hidden by the Kuril archipelago protective chain.
Covered with own shores, defense systems, and supplied.
We don't see it as an obvious thing, because till now, they have never conducted a maneuver, when let's say 20 ships carrying 8 Calibrs each, transfer from the Azov/Caspia/Med basin north, showing up themselves from nowhere, in the Baltic. Or floating out of a river just next to Murmansk, saying friendly "hello" to Norway, Iceland and the whole GIUK gap.
Those ships would be a 20kt displacement in total, handling 160 cruise missiles, or ASM, impossible to find&track, with force distribution requiring enormous assets placed to sort it out. The assets that neither Norway nor UK has.
And we don't see it as clear, as there are "only" 20+/- pieces keen to be used this way.
But just wait, they are starting up, and that will end with about dozens of ships very soon.
Sure, you can shoot a Calibre from a lorry. A truck, a container, whatever.
But having two options is 100% better than having one, right?