Specifically, just two years after the title text was written, in 1983, there was already Turbo Pascal which was much more useful than the language as defined for the introductory university classes:

http://edn.embarcadero.com/article/20693

It was the fastest compiler and environment of the time, but additionally, even before 1983, the "minimal" form of the language, suitable for teaching, was almost never used in production. What was used in production did have the necessary extensions which allowed having some very good software, with provably less bugs than C, because the basis was good and safer.

See also MacPaint, developed also around 1983 ("finished in October 1983"), in Apple Pascal:

https://www.computerhistory.org/atchm/macpaint-and-quickdraw...

Even Go language took its influences from Pascal, "rediscovering" some aspects that were obviously better (for the humans writing programs) than C.