If you read the CVR transcript the majority of the personal conversation cited was not a violation of sterile cockpit because it occurred before taxi with the parking brake set. http://www.ntsb.gov/Dockets/Aviation...022/439435.pdf

It should have been deleted from the CVR transcript as non pertinent.

Instead you get spin implying that the crew's violation of sterile cockpit was the cause of the incident.

The NTSB has an agenda which is Senate Bill S.3048.
http://www.govtrack.us/congress/bill.xpd?bill=s111-3048

That's why you get inflammatory news stories like this.
Transcript: Pilots were musing about sports cars - Yahoo! News

Yes, Their was a violation of sterile cockpit, About 37 seconds worth and that is all that should be included in the transcript.

The real distraction comes from an ATC radio call just as the flaps are set.