That just backs up what I've been stating, and since we're quoting Stroustrup -
Considering C a smaller, faster, and better specified alternative to C++ is another popular fallacy. The C-like subset of C++ is as fast, as well specified, and easier to deal with than C itself. One source of popularity of this fallacy is an unwillingness by some C/Pascal-level programmers not to learn something really new. Another is wishful thinking by some proponents of more advanced languages: after all, if C++ is simply a more complicated C it cannot be a serious competitor to a more advanced language.