Yeah, I don't think Sternberg is advocating for ending standardized testing:

"My colleagues and I developed assessments for creativity, common sense and wisdom... we doubled prediction [accuracy] for academic performance, and with Kaleidoscope we could predict the quality of extracurricular performance, which the SAT doesn’t do."

It sounds like he just wants to reform them, and has some strong initial results to suggest that we could do much better.