How valid is this popular and heroic view of Dunkirk as "The Miracle on the Beaches"?

"A brave of soldiers, betrayed by their allies, fought their way to home and safety. They were carried across the last crucial miles of water by a huge armada of small boats crewed by volunteer civilians." Using the information in all the sources in sections A-D and your own knowledge, how valid is this popular and heroic view of Dunkirk as "The Miracle on the Beaches"? A myth is a common story or legend. To …showed first 75 words of 1892 total…

…showed last 75 words of 1892 total…act as "shock-absorbers" and report the news in a positive manner. This is one of the origins of the myth. Although the majority of the sources proved the myth to be false, it is important to recognize that had the myth not been created, the British might not have been able to pull together as a nation and win the war. This supports the idea that Dunkirk was a military defeat, but a propaganda victory.