That article was written years before the pre-crisis when the focus was on derivatives, pricing, structuring, prop trading, etc.
The crisis brought more prominence on risk management roles.
You can't take that article as "the definite career guide". Read current article, industry news, etc.
Here is another good starter read
http://www.quantnet.com/quant-job-advice-from-wall-street-executives/
As is mentioned before, many MFE grads work in RM. It does not mean you will automatically be qualified. Like other jobs, it has a lot to do with if your MFE program has a strong relationship with hiring RMs, practical curriculum, and good teaching from practitioners from the Street.