Both you and the article are confusing the issue. The value to be gained from a good mathematical education is problem solving skills. These skills are neither

Both you and the article are confusing the issue. The value to be gained from a good mathematical education is problem solving skills. These skills are neither the focus of high school mathematical education nor what is being accessed by standardized tests. Whether one uses specific knowledge directly in their profession is irrelevant. The knowledge is required to teach the concepts and skills. There is also more to life than one's profession.