Agreed, AOG. You do get unfairly treated on this site sometimes (only sometimes, mind!).
Oxford and Cambridge always look beyond exams. They want more than a swot who is good at exams. After all, their courses are more testing than A levels, so, on a purely intellectual level, they are looking for someone capable of far more than that. If an Einstein or an F R Leavis turns up, they would hope to spot the extra quality of mind. Otherwise, they are looking for a rounded intellect, someone who can answer frivolous questions such as ; a real example; "Do animals have rights?", answers to which demonstrate a flexibility of mind and an intelligence in an instant response. Try answering that one when you are hoping to read something other than philosophy!
This young man may have been adjudged to fall into the first category, but may also have been in the second.