I think he's right. The democratic star-making apparatus of YouTube, Vine, Snapchat, and Instagram makes the hierarchical power structure of talk radio look like the Middle Ages. It's not that the preferred subjects of shock jocks have become irrelevant -- swear words, slapstick violence, fart jokes, and strippers are still popular -- it's that the tools of their trade, the medium they use, and the culture around them are changing so quickly. It's hard to keep up.
As I finish talking to Calta, the truth becomes a little less murky: The shock jocks weren't defeated. They went viral. Like a belching ghost, they haunted radio for decades, then moved on to spread their fumes elsewhere. They walk among us: screaming podcasters, angry Redditors, and egg-avatar Twitter trolls. If you want to know what happened to shock jocks, all you have to do is take a whiff.