I'm not being condescending. However Oxbridge looks at applications holistically, so there MUST be another factor that contributed into her rejection. Having said that, she got 8Bs, which isn't typical of Oxbridge candidates.
Bear in mind that this one case and it will not change the majority of people's views on GCSEs.
In addition, I'm sure she is perfectly capable academically, however, perhaps not enough for Oxbridge? (After all, it is top).
There are many reasons as to why she could have been rejected, not just on GCSEs surely. Especially as you have outlined that she only learnt English two years ago, this must have given her some leniency - albeit still rejected.
You mentioned that she applied for Politics at Oxford (however it doesn't offer it as a single honours subject), so I'll presume she applied for PPE.
http://www.ppe.ox.ac.uk/index.php/applying-for-ppehttp://www.economics.ox.ac.uk/index.php/criteria_for_admissions_ppeIn fact: "No. We only interview those who have a realistic chance of getting in, when judged by
past and predicted exam results, school reports, personal statements and the pre-interview test. Applicants who do not take the pre-interview test will not normally be shortlisted for interview. Candidates from overseas may be considered without interview."
Learning French and Japanese is irrelevant for PPE or Politics as:
"Candidates are not expected to have studied any philosophy, politics or economics at school, but
should be interested and be prepared to put their minds to problems of philosophy, politics and economics presented to them. "
All you have told me is that she enjoys language-learning. Not really relevant to PPE, is it? (Having said that, I do not undermine her efforts).