For example, both the Bismark and the Repulse could have been saved from the followup attacks if their damaged rudders had been blown off by a diving with UDT experience.
Certainly, the explosion to blow off the bent/jammed rudders would be harmful - just like the original aerial torpedo explosions did more damage than just jamming the battleships’ rudders, but the jammed rudder prevented both battleships from any chance of getting away from the immediate area and getting under friendly air cover.
That was what happened to the battleship Hiei sunk in 1942 in the Solomons. She had taken a hit from an American cruiser that disabled her steering gear...she was left as a sitting duck for the Cactus Air Force, steaming in circles within their attack radius.
I read something where the Japanese said the American planes came in on the crippled Hiei like ‘vultures’...