As soon as I read that line I stopped reading, I really don't care what mistakes an AI made - it doesn't understand what it's doing so the mistakes are arbitrary, and relate more to it's inability to understand anything than some fundamental difficulty in the topic.

Just look at the mistakes in the article: an off-by-one error with the lines of code for rendering, and a pointer bug that prevents the program from compiling. These are the kinds of mistakes you make in your first few weeks of programming, and don't have much to do with the underlying topic of rendering with a GPU - it could have just as easily been written about implementing a database, implementing an operating system: anything of sufficient complexity.

Not to begrudge the author but this shows more about his faith in AI than anything related to GPU rendering.