Disclaimer: I'm German. I like my native language. But I don't think that it is more concise than English in any use case I can think of and while I feel that the article is interesting and amusing, it's not comparing the real world German to English. The examples are valid, the article didn't seem wrong, but .. I doubt that this has any significance.
Unwieldy is a crappy attribute of course. They aren't unwieldy. Foreign, strange to you? Sure, can't argue with that. Unwieldy though? Don't judge what you don't know.