Star Wars had some CGI in it with the Death Star plans. The author makes the distinction of the stained-glass man being first CGI person. Tron was definitely first large scale CGI involved movie.
I’d rather watch any of the Marvel movies than most of the dreck he put in his article.
Don’t forget about 1971’s The Andromeda Strain (The computer layout visuals for the Wildfire complex) and 1973’s Westworld.