This is exactly the problem the author is referring to. With Terraform, you always type "yes" to proceed, so it turns into muscle memory. You stop reading the output, and you're already typing "yes" before you even see the prompt. Terraform's output is also verbose, and many changes show up as "1 to add, 0 to change, 1 to destroy" because they don't separately list a "replace" category. It's pretty bad; you've got cognitive overload, confusing output summary, and a predetermined continue answer. And this is often an action you're performing under duress. I've been bitten by it plenty of times.