momo95...Why are you getting yourself wound up about how BA could potentially view the foundation year? As I understand it, you meet the entry criteria. That's that, as far as BA are concerned. BA are much more concerned about your skills and competencies in a professional and social environment i.e what work experience you have done and how you demonstrated team work etc..blah blah blah...you know the score.
The academic qualifications set for entry by BA are just a means of filtering through a manageable number of applications. From then on, in terms of academics, most will depend on your performance in the assessment tests (verbal/numerical reasoning, aptitude tests etc.). I don't think my secondary education subjects and results came up once throughout the whole assessment & interview phase, aside from some photocopying.