Japan students fall to sixth at science of OECD

According to some mass media, Japanese 15-year-old students' fell to 6th at science of OECD. This tendency changed people mind, then the Cabinet and Diet decided to stop "relaxed and lighter curriculum" education policy and renewed. People always want a villain on this topic but it's very strange for me. In my feeling, especially in developed countries, education contents should be to teach, to make students studing and practicing by themselves, to understand why and how our life get better, and to think about making our better life with other developments. Particularly for most Japanese schools (unfortunately even some universities), education is just to teach. If students loss their motivation, the future will be desert. What or how do you think about this??