In the article they noted that MarkMonitor (Who I've used myself), is more focussed on managing online brands, and the registrar element is a sideline. Also - MarkMonitor can be pretty pricey - I'm wondering if CloudFlare is price competitive with them?
But yes, I agree - if I had to recommend to a fortune 500 today where to go to manage your domain safely, it would be MarkMonitor. I guess we'll see how CloudFlare stacks up over the next few years.