I agree with irishoperator.
Whether or not the salary is good/bad/indifferent in comparison to the going rate in the South East, or vs what you can earn as flexicrew or even vs a regular graduate scheme is somewhat missing the point in my opinion.
The fact is that BA will guarantee your loan, repay the entire bond over 7 years including your type rating and offer you a permanent contract at the national airline.
Compare this to funding your own training with CTC/OAA/FTE, probably having to find even more for a type rating if you're lucky enough to be offered employment via flexicrew or something similar and STILL not being certain of permanent employment, and it becomes apparent that this is by far and away the best cadet scheme out there.
I of course understand that people will need to figure out the numbers etc when they are employed i.e. rent/mortgage, bills, food etc but the worst case will see you with a couple of years of 'pain' before security