"World music" is indeed a pretty synthetic category. Basicaly it's "lets have some funny foreign stuff for a change and sell a few more records and get bums on seats" - and I suspect that more often than not, what we end up with hearing about isn't in fact the best music from the cultures, it's the stuff that has the right combination of familiarity and novelty.

Clearly the man hasn't any understanding whatsoever of the folk music of the country he lives in. However I think it is highly unlikely he knows anything more about the music of the countries whose names he drops into his intro, so knowingly casually.

That isn't any kind of an explorer writing. He's just a tourist.