Why would any thinking person waste their time and energy on a 'study' on astrology that's so blatantly biased and distorted -- ie designed and funded by the Kansas City "Skeptics"?   

ANd did you not notice Hamblin's closing words in the paragraph you posted? They ARE the most important ie "...Since these correlations have not been demonstrated, it is plain that astrology does not work in the way that most astrologers say that it works, even if it may possibly work in some other way."