I love this too. It accomplishes two things.
1) Educates the public about the tactics of selectively edited gotcha journalism.
2) Destroys any ratings potential for CBS on Sunday Night. Hell, they might not even air it after this.
I suspect it will increase the value 10 fold. People who don't even know that 20/20 is a TV show will tune in. They get paid for eyeballs no matter who they support.