I know just how he felt. If you're a practitioner of business continuity management, perhaps you do too. I've been banging this drum for... a dozen years, using varying approaches and tones, about there being a vast difference between BCM and planning to recover IT services. Are they related? Of course they are, but it wasn't until I learned of the lovely ITIL term "IT service continuity," that I found a reasonably accurate and distinguishing term that clearly separates IT "DR" from the efforts to plan recovery of critical business operations, like manufacturing, service delivery, et cetera.
Some may ask: Why get so bent out of shape over terminology? Here's why: In the last five years, I've spent more than my share of time looking for my next job or project. But the percentage of "business continuity jobs" posted are strictly for techies - people very comfortable talking bits and bytes. I've lost count of the technical recruiters I've tried to educate on the difference to the point I've given up. It's a fool's errand.