I had a quick look at their first review (Canon 800mm) and I have to agree - their photos are great!
Dpreview definitely is far below that level (and their "developed to taste from raw" conversions are usually pretty bad) which is odd, since you'd want people to see great photos and make people think that they can take the same kind of photos if they buy the product.
Now that I think of it, guess there's two approaches to camera/lens marketing:
-show inspiring photos & show what a photographer can do with a certain camera/lens
-show measurements and test charts and long lists
dpreview is clearly in one of those two camps
Guess I'll have to check out how good google translate deals with Korean :-D