'People' are wrong. Ignore them. It only looks 'bad' if 'people' think every student at Oxford has grade 9 for all their GCSEs. They don't. If you are asking for opinions of all and sundry, you will be asking some people who don't know anything about Oxford. No wonder you are not thinking in a focussed way. Too much advice is pulling you in all directions and queering the pitch. The decision is your DD's to make. Never mind what 'people' think.
Here's the one question your DD should ask herself:
'I am predicted an A* and 3 x As at A level. Is it worth me applying?'
BTW A at A level in languages is very unusual for non-mother tongue speakers so her As are saying more than you might think. My DD's only A grade was for French, the subject she studied at Oxford. Music and English Literature were both As*.
She is interested in applying and has the grades to apply. If she doesn't apply now, she will wonder for the rest of her life whether she should have done. Why burden herself in that way?
Does her school think she should apply?
You are expending a huge amount of energy on this, to little effect as far as I can see. All your DD needs to decide at this stage is whether to apply. She has a good case to make. The consensus on this thread is that she should apply. Rather than worry about her grade 7s, which can't be changed, she could ask herself: 'What's the worst thing that can happen if I apply?' The answer: She doesn't get an interview, or gets an interview but not an offer and goes to another excellent university instead.
If she were to be questioned on her grade 7s (which is an outside possibility only because GCSEs are water under the bridge and the interviewers are interested in potential) at interview she has her answer ready: 'I wasn't performing at my best when I sat those exams and I won't deny I felt frustrated with myself when I collected my results. However, A level English literature has really stretched me over the last four terms and I feel sense of achievement that my ability to work with literary texts has progressed to such an extent that I am predicted an A*.'
My school encouraged me to apply to Cambridge in the days when there was still an entrance exam. I passed the exam and was interviewed but was unsuccessful. My disappointment was short-lived. I went to UCL, my second choice, and loved it. All these years later, I am glad I applied to Cambridge because it set me on a path of pushing myself and being open to new experiences. Similarly, your DD loses nothing by applying. I sincerely hope she does.
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