JAMB, Oloyede and the mindboggling allegation of ethnic bias

The question is: Why would a man who has been superintending over JAMB and overseeing the UTME through the years without this level of hiccups in any part of Nigeria suddenly turn against a whole southeast region? What exactly does he stand to gain? And if he is biased against the southeast, is he also prejudiced against Lagos that has Yoruba majority?