I dunno. Sounds like there's a chance that the economist's own biases are coming into play here. I'd apply the Principle of Indifference...."No, because" and "Yes, if" pretty much sound like the same thing to me. It's how you react to those phrases that makes all the difference.
If you let "Yes, if" evoke a different emotional response than, "No, because", even though they provide more or less the same information content, what does that say about you?