Maybe Oxford is a little slower to adopt 'fad' majors. Computer science was invented in 1965 at Carnegie Mellon. Only 50 years have passed - Oxford is just noticing this modern field and may come to accept it as a lasting discipline in another 50?
> The world's first computer science degree program, the Cambridge Diploma in Computer Science, began at the University of Cambridge Computer Laboratory in 1953. The first computer science degree program in the United States was formed at Purdue University in 1962.
I got the generalist thing from here: http://www.bbc.co.uk/news/magazine-11136511
Do you happen to have any handy links to where I could read more about the British valuation of general education and how it differs from the American approach?