Well, he wasn’t “kempeitai” (military thought police), or equivalent to either SS, or a Party political officer embedded in a Soviet military unit or USSR submarine such as from the Frunze Academy, but just an average young Japanese man sent off to war, with a sense of patriotism and giving his all for his country, flag and Emperor. If he committed no atrocities on civilians (or US military for that matter), and stayed loyal to his own side as a military man to that extent, I say, even if on the enemy side at the time, yes, it was HEROIC and ADMIRABLE and we would want our US men in the field to equally avoid capture to this extent. This is called basic “escape and evasion tactics” and anyone trained in the military knows it. This man carried it to incredible lengths. He was indeed samurai (or at least true to the Code of Bushido).
He has died spotless in honor.
He should be buried at the Yasukuni Shrine.