it seems to me as if in 1945 Germans didn't care much about the act of claim confirmation. Those who fought, did so not for glory but for their sense of duty
Some of them obviously cared a great deal about victory confirmations because Luftwaffe's system of medals and promotions took account of accredited victories and/or missions flown. These things were seen as a measure of how well you were doing your job. In an organisation employing hundreds of thousands of people there were bound to be some frontline glory-seekers, just as there were people behind desks who were happy just to get the rations or whatever delivered to the right place.
Also the history books are full of examples of Germans acting up to the last minute of the war as if the Third Reich would never end. People aren't always realistic.