By the time the early 2000s hit, the people who listened to college radio no longer self-selected for people who knew a lot about music, but rather were just people who were generally anti-establishment. But they hadn't built up an especially rich musical knowledge base.
Fast forward to 2011 and languages. Now I'm almost as likely to see Clojure on a resume as C++. Yet the quality of applicants doesn't seem to have gone up all that much. TDD knowledge seems to be MUCH more prominent, but I haven't noticed an uptick in knowledge of algorithms, complexity, anything under the hood, or programming (as can be judged in a day long interview).
In 2011 the choice of language says less about the programming ability of the person, and probably more about their personality. Much like the college radio heads weren't especially musically sophisticated (on average, but of course some were brilliant), but they all seemed to share a counter-cultural vibe (even when you went from goth to hip hop to polka).