This has nothing to do with sour grapes qfpaypacket. Your reference to the CP's son is irrelevant simply because we don't know whether he has applied or not. Unless of course you're willing to enlighten us. If so perhaps then we could establish the stage that he unfortunately fell down at. I bet, if he has tried, he was certainly given a shot at the aptitude without question.
Bottom line is that it goes on, for and against. I'm just very suprised to hear that ANY pilot with well over the minimum requirements to get into the airline would be turned down without any consideration for stage 1. This is irrespective of whether that person was related to a senior employee or not. The fact that he is just makes it even more interesting. Maybe then it is the internal politics as I mentioned previous, if so this is in my opinion childish and shameful.