Yes, I believe so. I'm not even sure the Dark Ages are taught outside of countries with European heritage.

Nevertheless, anywhere the topic is discussed, it's usually mentioned in comparison to other periods of European history. That alone tells us that it's a term intended to describe regional rather than global events.

Er, even 20 years ago when I was in college it was taught as both largely a misnomer and a label applied to a (somewhat ambiguously bounded, especially as to the ending point) period of Western European history.