I can tell you that I can't think of a single IT support org that uses this as a metric
Some years ago, I had a help desk in my organisation that did use this metric as part of how its analysts kept tabs on their performance. It was one metric in an overall package, and the whole team (all the analysts) reviewed the package every week. As I recall, other metrics in the package included Customer Satisfaction, Average Call Length, Number of Calls Back to Users per Agent, Incidents Resovled on First Contact, Incidents Escalated to Second Level, and others.
The help desk team very successfully used the overall metrics package as part analyst self motivation and peer motivation (as well as management oversight). Bob Lewis's piece is provocative journalism: devoid of concrete detail and full of high level innuendo. It doesn't contain sufficent detail (say, by way of actual detailed examples) to allow a typical reader to apply the thoughts he has expressed.