The most common critique of the US system is the lack of focus on testing and measurable results. Bureaucrats and teachers unions have fought this push for decades and only now has it taken hold. Even if you are right that the American educational system now focuses too much on standardized tests, this focus pales in comparison to almost any other industrialized nation. And even then, this focus on testing is hardly even a decade old.
Speak to a student from China, Japan, the UK, or Ireland and get back to me about focuses on standardized testing.