I have another question based on the instructions. Why does a Netlify user have to create an oAuth application of their own? > … in order to use the CMS, you’l

I have another question based on the instructions. Why does a Netlify user have to create an oAuth application of their own? > … in order to use the CMS, you’ll need to set up authentication with GitHub. That's the opposite of how oAuth is typically used and I notice that at this point in the process the user has already gone through an oAuth flow when they clicked "Sign in with Github".