Loss of a Pacific Submarine base?
It may be true that this base has been seriously damaged, but Russia has many in the region that one believes remained close to prying eyes and it is believed that much Uranium is mined in this region to sell on to France, U.S.A. and the U.K, with other precious metals, what about sanctions, what about them?
Losing one base might be sad, but this will not deter the largest submarine fleet in the world and the largest types ever built the Typhoon class! Russia and the former Soviet Union has had a long history of accidents and loss, but so has the west, only not reported?
Russia has a military philosophy in warfare that the sub is a better launch platform, than aircraft carries, since they can dive and disappear after firing cruise and ICBM missiles, more so than being a large fairy lights sitting duck?