You do realize that the article you chose to post was apparently written by someone who is simply parroting what they've been told?
The last line indicates a fundamental lack of understanding about the entire subject.
ABC News has never exactly been a wonderful source for firearms facts, or any facts for that matter. Probably hasn't been bothered with the facts since Peter Jennings became their anchor back in 1983 and IMO hasn't gotten any better since he passed away.
A Metro New York reporter who apparently doesn't know the difference between .38 SP and .357 Magnum not to mention the difference between either and .357 Sig wouldn't be my first choice of authorities either.
Here is what REALLY made professionals give up the .40...