The language is important because it helps you think about the problem in the right way.
This statement stuck a chord reminding me of an instance not so long ago . She asked me – “why did my project had just a couple of risks?” . She went on to probe us (my PM and me) to understand if we were not thinking of the risk.
At that time, I did not answer her in the way the Author summarizes it. We presumed that we had a functional scope documented and hence the risk of not being able to deliver what was required did not exist.