I don't know anything about Ana Marie Cox, but the above statement is sophistry at the least. I've been working in this field for 16 years, and we have never stopped using IQ as a means of measuring aptitude and estimating success, and there are no plans to do so in the future.
Re: “We have never stopped using IQ as a means of measuring aptitude and estimating success.”
British public schools and the civil service used IQ tests for decades, and perhaps still do.
Using that database, British psychologists created a huge body of literature on the correlation between high IQ and high income.
They also found a high correlation between high IQ and long life.
That is doubly interesting.
Because, virtually all British civil servants receive exactly the same health care from the NHS.