NAB opposing Webcaster Settlement Act of 2008

According to CNET: NAB, the National Association of Broadcasters, is opposing the Webcaster Settlement Act of 2008:

(CNET quoting a NAB representative) "NAB has concerns related to Congress attempting to fast-track a bill introduced less than 24 hours ago that could have serious implications for broadcasters, webcasters, and consumers of music. NAB spent more than a year trying to work out an equitable agreement on webcasting rates, only to be stonewalled by SoundExchange and the record labels. We will continue to work with policymakers on a solution that is fair to all parties."

I don't get it, you'd think this would be in AM/FM's interests as well, as it will let NAB negotiate a deal and have it codified as well. This doesn't limit deals to a single, specific organization.