>>64136068
The Mogami's have extremely limited redundancy and survivability in battle damage conditions because the Japanese don't value it highly it let them cut down on crew requirements.
>A study of the CIC and bridge explains why Mogami frigates have achieved such small crew numbers – and it is not just due to high levels of automation but also alterations to how the ship is managed. The two best examples are that Kumano has neither a separate radio room or a damage control centre, the former usually directly behind the bridge and the latter buried deep in the bowels of the ship in a spot least likely to be hit during combat.
The logic goes:
>The calculation is simple: there is no need for the Mogami class to have a separate damage control centre because if the ship receives a major hit to the CIC – including from future hypersonic missiles – there will be no point in trying to continue operating. The most likely outcome of such a scenario is that the surviving crew will be heading for the life rafts. This also explains why the ship is without an emergency CIC, with further savings in personnel numbers.
https://asiapacificdefencereporter.com/mogami-frigate-fast-and-stealthy-like-a-ninja/
But this is extreme cope. While a direct hit from a huge warhead will likely render any frigate unusable, the Mogami's configuration means that it's likely to suffer unrecoverable damage from even much smaller warheads. Even a badly damaged ship can be repaired much faster than building a new one. It's typically not a good idea to have your damage control strategy be "abandon ship".
The Japanese have chosen this option for exactly one reason.