Actually, Maddux, Halladay, and Oswalt all had seasons in the top 10 in strikeout rate. Not to mention, K/9 is a rough statistic - strikeout percentage is more accurate. In 1995 Maddux was #4 in strikeout % in MLB, behind Randy Johnson, Hideo Nomo, and John Smoltz. Halladay and Oswalt also posted solid strikeout rates in their prime. Strikeouts, by definition, cannot be overrated. Individual pitchers could be over- or under-rated based on strikeouts, but this is true of any statistic.