Why dont you critcise both of them who could not get through the exam.it is also a sign of transparency and individuality where examenier doesnot like to pass the student on behalf that she/he passed in previous exam. Even most of time u cant produce an essay on some tough topic like in css 2015 it would be feckless to blame fpsc for all the things . We should rebuke ourselves and make new approach for passing css with bright colors . We should acknowledge that those who passed are no doubt bright studdnts. I m totally agree with u that there is a luck factor but hard working is a key to success.