NO!
IMHO, while I do not agree with everything in the article quoted and referenced below, I find nothing wrong or disrespectful about challenging the idea of Ng Mui, or referring to it as a myth.
Nor do I see anything wrong or disrespectful about challenging the idea of a Shaolin-WCK connection, or referring to it as a myth.
Hopefully there is no double standard and everyone will encourage the open discussion of both these, and other, important issues without hypocracy and with productivity.
"The Secret History of Wing Chun: The Truth Revealed
(also appeared as "Wing Chun Controversy: Is this the truth about Wing Chun's History")
By Benny Meng and Alfredo Delbrocco
"The first casualty when war comes is truth."
-- Hiram Johnson
...
"Put simply, the harsh truth is this: the myth of the Buddhist nun, Ng Mui and her disciple Yim Wing Chun, the supposed founders of the Wing Chun system, is just that - a myth. As the internet has brought information more readily to us, it has come to light that the story of Ng Mui and Yim Wing Chun was merely a way to conceal the truth about the system's origins and the identities of the political rebels who truly developed it..."
http://home.vtmuseum.org/articles/me...threvealed.php