Have you ever been responsible for the performance and security of a publicly accessible web server? I'll accept robots indexing my content if they play nicely. Unfortunately most do not, even from major vendors.
We never distinguished automations from people though, that makes no sense on the internet.
LOL I see you've never sold anything on the internet, ran a website that is supposed to generate leads, or had to gauge the effectiveness of an ad campaign. There is a huge part of the internet that relies on real humans doing things on websites. And ignoring that is insane.
In practice business people have such a poor intuition for systems design you end up with borderline unusable software when you do that.