Well, military media has spent the past 20 years laughing at the sorry state of the Russian Navy, being broken-down rust-buckets.

Some of the analysis/conclusions about the Moskva sinking kinda confirm their problems: abysmal maintenance wasn't only surface-deep. She likely had major self-defense systems that were degraded, inoperable, or manned by unskilled sailors.

The US keeps decent equipment readiness largely by throwing a fortune at contractors for maintenance, but overworked and poorly-trained Sailors at sea should be a major red flag (as if the numerous accidents in 7th Fleet wasn't sufficient wake-up call).

The longer it remains the less 'superficial' it becomes.

Yes, if they're not protecting the outside then what are they not doing on the inside

No it's not, especially when it's in for repair as this ship appears to be.