Aerouk, that was last year. You are now well in sight of your degree. At the time they were hardly likely to say come back 11 weeks before the end of your course.
And for everyone else too.
The same holds good for A-levels. People apply to university based on expected grades. The Services use exactly the same criteria. If you are good enough then you may get a qualified acceptance - simple.
There is a risk that you (I am talking generally) don't get the A-levels, so why would they go to the trouble of assessing you early?
Two reasons:
a. To 'capture' a good qualitity candidate before they are snapped up elsewhere.
b. To smooth out the assessment process at OASC.