"The scripts are said to bear a BBC watermark, the name of a staffer*..."
Hmm, that would be scapegoating. The first question I'd ask is how the staffer came up with the idea of using a public server. Don't they have internal resources? Don't they get training?
Most people I deal with are breathtakingly naïve when it comes to the dangers of the Internet, and need training to get at least some idea of how quickly information can wander off. I would assume ignorance over malice, and in that context throwing people onto the street strikes me as too harsh.