Yes, you’re right!
This section is an over-simplification of IL.
BNB is not usable in the real world - you can’t buy a coffee with BNB. Even with crypto cards, it has to convert to fiat at the point of sale (POS). To “realize” any profit, you’d have to convert your gain to some kind of stable coin, that could subsequently be withdrawn by conversion to fiat.
So, what I was trying to demonstrate is that once DRIP is sold, it is possible that the intermediate asset, in this case BNB, could depreciate in value prior to converting to stable coin to lock the gain.
I will try to add a footnote explaining this discrepancy that you found. Thank you for catching that! And thank you for reading! ~Ryan