Doesn't sound like a refutation of the article to me. There's a difference between using communication to keep gang ties strong, and using communication to keep family ties strong. A difference between incarceration of people who belong to organized crime syndicates (where their biological family ties are subsumed by their organized crime syndicate ties) and those who are incarcerated for armed robbery of a liquor store because they need cash to pay for their addiction. It shouldn't be a surprise that different prisoners engaged in crime for different reasons, and therefore require different strategies to rehabilitate.