Almost by definition of being on this website, all of us are well advanced of our pre-college computer science teachers. My first was actually a chemistry teacher. My second was biology. One had me doing tech support in junior high. It wasn't until the AP class that I found one who could teach me. But teachers using outdated technology isn't the issue.
The real issue of the article (and complaining about Visual Basic detracts from it) is a teacher who sets up an environment that tolerates harassment and bullying. It doesn't matter the discipline, the teacher failed all the students. The teacher failed the girl who dropped out of programming, and the teacher failed the bullies, by not pointing out that this behavior is wrong.