I dunno, I skimmed the article's 31 year old code examples and immediately thought they would be shorter and simpler in c++11 or later.

But it's important to see the 1994 (and 1998) view of the world to understand how modern c++ features work. Because they start from that worldview and start adding convenient stuff. If you don't understand how c++ used to work, you may be confused with why c++ lambdas look so weird.