@Mike D and Curtain Jerker
I think you could well be right. In which case, why turn back and not press on to the bitter end? It seems as if the two Yamato class ships were still combat worthy and could have broken through or at least battered the allied battle line further.
This actually seems more likely than the insanely proud IJN officer class deciding to run the gauntlet of submarine lines - two (2) - airstrike/s with whatever ship killing ammo the allied force still has, land based air strikes, possible storms at sea finishing off cripples...all to be told 'you may use the garden' and handed a knife.
Admiral Yamamoto has nothing to lose except his life, which he won't have for very long even if he makes it back to Japan. The rest of the Japanese officers and crews are in the same position. Ordering the cripples to try to make it to safety while he draws all allied attention onto the Yamato class battleships with a mad charge at an overwhelmingly powerful enemy is more in line with his code of honour, is it not?
I mean yes, suicidal, but
glorious and self-preservation was not high on the agenda of people raised on Bushido as I understand it. A calm, coldly analytical cost-benefit analysis would probably not consider this a good idea. If the Japanese officer class of the era had been big on that kind of thinking they wouldn't have been the Japanese officer class of the era.
Go home with their tails between their legs in defeat, or die setting an example for centuries to come? Set aside your early 21st Century western society mindset for a moment and try to see it from the perspective of men who really BELIEVE that dying for the emperor will make them Shinto gods.