The attitude point is an interesting one. The attitude of a significant percentage of cadets from the two big integrated schools is one alluded to earlier in this thread, that they have bought "the best" course (or bank of mum and dad have ) and therefore should be guaranteed a job. This is irrespective of actual performance achieved and most significantly, effort put in. Any poor progress is blamed on instructors, encouraged by a "customer knows best" attitude of the management.
The end result is some 10-25% who are just revenue fodder and really should not be there in the first place. The "selection standard" in fact is not standard at all, and varies depending upon how easily (or not) the schools are filling places.
This thread seems to have confirmation bias problems in seeking justification for an already decided course of action.
I have not not seen anything so far that supplies this sought after justification though....