The reason for the difference between Oxford's and CTC's applicant success ratio is obvious: Oxford's 'applicants' (really potential customers) have already sourced the money and are in the process of deciding where to spend it. Therefore they have self-selected long before Oxford gets hold of them. CTC's applicants are hopefuls who are looking for a way to have their training paid for (even though it is later deducted from their pay), and who want as near as they can get to the guarantee of a job, therefore loads of people will apply even if their chances are minimal.
If Oxford's scheme arranged and deferred payment until after pre-arranged employment by a contracted airline, I'm sure they would have the numbers of applicants that CTC have, and the ratio of success at application would be similar. As it is, they are offering an enhanced integrated course to those who have the money to pay for it. They can't afford to turn too many of those away...
Scroggs