Not to take ANYTHING away from his deed but...
The man had guts. He flew through this:
That is 100 meters wide and 38 stories tall. The P-51 has a wingspan of 37 feet or 11 meters.
It was for sure a help that he was a 22 year old bullet proof Mustang pilot as mentioned above. He was moving at a high rate of speed and threaded the needle. It was not something that was easy but the man himself said there was "lots of room" but that might be just modesty.
As I said I don't want to take anything away from fighter pilot that shot down a enemy plane during a war in Paris, deep in enemy territory. He was a great pilot and we all owe him deep respect. His feat was nothing superhuman. He was doing his job. Doing it very well.