In the Midwest and South of the country, it has been a long tradition to criticize NYC. Do you recall the ads on tv about the battle between the two major salsa companies?
New Yaaawk City!......BOOOOOOO
Midwesterners have been the but of jokes from NYC for years and the payback is well understood.
To make this about 9/11 is like pulling the race card to end a argument.
So, in closing, someone either has no sense of humor, or is giving me a wet willy.