Cracking a "Developer Tools Killer" Script

I like most of this article, but not this part:

> And there are legitimate reasons to turn off debugger tools for certain web sites.

No there aren't.

> For example, when I worked on Microsoft Edge, we considered proposing a standard HTTP header that would disallow developer tools for banking sites and such. Bad actors do use Developer Tools with remote access software to fake for example bank transfers so it would make sense to have a standard way.

I'm sorry, but this is a completely ridiculous reason to allow websites to control what I can do on my own computer.