(Oxford, along with Cambridge but unlike many universities, has the results of interviews and, for many subjects, admissions tests to assess to whom to offer a place. They make offers expecting that the vast majority of them will be met, rather than over-offering and expecting A-level results to prune the numbers significantly. In previous incarnations of the admissions system, candidates who passed the entrance exam and interview routinely got an offer of two Es, i.e. a formality. So, providing places to all offer-holders would not seem an unreasonable course of action in the circumstances.)