99% chance they did. Article is likely just making it up.
Would YOU travel to a foreign county w/a fistfull of dollars and exchange as you go? Not likely.
Use credit card? You’d be a fool to do so. In addition to the exchange rates, CC’s add even more in fees for the bother.
Traveler’s Cheques or exchange at airport/hotel or in advance is what everyone, except illegals and refugees do.
You are right.