Yes, the point of the post was that it had a lot more to do with being a kid with a computer than with being male or female. The point of the title was that it was a story of ... a girl and her computers :)
The switch from 'a girl and her computers' to 'girls and computers' is a problem in itself (pop culture ref: http://xkcd.com/385/). Would you take a story of a boy and his first computer and call it 'boys and computers'? Why is one girl representative of the group?
But you're right, it probably isn't the most descriptive title.