Disappointed to see that most comments here missed the point in the article.

All these comments claim that automated tests make their code stable, fast, easy to refactor, etc.

But the article is not talking about those characters of the code, it’s about pivoting fast and making money. Does your stable, easy-to-refactor code directly make you good money? If yes, then please talk more about it, this is the correct response to the article, please don’t just claim your code is stable and easy-to-refactoring, and in the meanwhile have nothing to do with making money.