Nope. That is documented history. Look it up. According to the Armed Forces Museum site, that "...is the only known WWII aircraft to be taken down using only pistols." "Only known" meaning the only incident confirmed.Did you hear that story from a German intelligence officer?
Look, I get that everyone wants the parachute story to be true. And who knows, maybe it is. But it is 1) Unlikely, and 2) Unconfirmed. You and everyone else are completely free to believe it anyway if you like.