I'd tend to agree with you. But the problem of teaching it still remains. While it'd be great for dedicated teachers at each school to create a flexible, Javascript-based curriculum built around online courses and projects, I think the reality is that very few would have the time, energy, or motivation to do so. So far as I know, there don't exist very many Javascript textbooks aimed at the high school, middle school, and (hopefully) elementary school levels. Without that kind of traditional material, it's difficult for even passionate teachers to get classes approved by administrators.
The questions/problems that the exam board sets (considering the number of hours the students get to solve them in) are really suited to VB, or another Visual based language. What I'm trying to say is that the language chosen also has to fit the requirements of the exam board, as the students, school and myself are all judged by our results (GCSE grade etc).
