Good effort in your research, WFFC.
There's gonna be a fairly high toll of the CIC team and others in that area north of the machinery spaces, but there should have been a recovery of much of the crew at least from the tub, how they will fare at Lefortovo is another matter. Russia is pretty tough on those that have dared to be survivors.... K-219, K-19 K429, etc...
Actually, given the majority of water ingress moves towards the stern, it suggests the initial explosion ripped through the ship, from the impact (roughly 1/3 front) to nearly the stern, either ripping out all (or at least releasing these from their water-tightness purposes) the bulkheads or just being confronted with all open bulkhead doors, which no longer close after the explosion. We need to be aware, the hull itself would be very strong, potentially the same for the deck itself, so an explosion stays inside the hull, unless deck or hull are heavily compromised. When this happens, people below deck have very little chances to survive the pressure wave. Given the impact timing, most people would have been in their quarters, below deck. Maybe this explains, we only see so little people saved.
Reasons to abandon a warship: imminent sinking or an expected big boom.
Just wondering: Did the Moskva turn-over, though was still floating ? In which position, the tow-back was attempted ? Given the latest pictures, there are little tow-attempts, whereas the timing would be not far from the "it's gone" moment.