Yeah, I agree that the physiolgical modeling of sitting in a flaming aircraft are not modeled.
I am only aware of one instance in WWII where this actually happened and it earned the pilot a Victoria Cross.
Really what the pilot of the flaming A6M should be doing is jumping out. Or, if historical and without a parachute, augering to end the pain.
Why do flaming A6Ms last so long and flaming Mossies so short? Why do Mossies catch fire so much easier?