But the IJN ships had poorly executed damage control systems where the redundancy either didn’t exist, or when it did, could be disabled by a single hit as happened in the Battle of Midway when the firefighting system redundancy was taken out with a single bomb (can’t remember which ship)
Part of their problem in that area had to do with staffing. Everyone wanted to serve, but (as here) not everyone is really cut out for it. So, the jobs that weren't glorious were filled with the bottom of the barrel. I recall that one of those geniuses thought it was a good idea to get all the smoke and fumes out, had everything that would open opened, and it set everything else on fire, and the ship was lost. Whoops.
Yep. They turned the carrier into a huge fuel-air bomb.
The Japanese Bushido culture gave short shrift to any areas behind the fighting core. The Japanese just weren’t interest in damage control. They relied on Heavenly Intervention an awful lot. Add to this the brutal treatment of enlisted men, the regular beatings, and you don’t end up with a crew that has initiative.