Sorry for taking it the wrong way. But if you don't mind I will leave the reply anyway so any one thinking of doing Aero because its sounds cool but they want to be a pilot in the long run might have second thoughts.
Personally I don't see why Uni's should pick up the pieces of a crap secondary education system. And why should they take resources from the core undergrad courses to give remedial tutorials.
If the output is that bad, start setting entrance exams if you can't trust the points system. And personally I would also start discounting certian subjects from the grades lists. And if required run summer schools which the little cherubs have to pay for pre entry exam.