Redirect Users away from the "Request Access" page to a specified page they have access to

So, Bill Baer had shared this link out over Twitter https://docs.microsoft.com/en-us/azure/active-directory/active-directory-tenant-restrictions which mentions setting up a proxy to control access. Which to me means, depending on how much work and overhead you want, you enable some of this architecture, and then at the proxy you do some sort of regex query the "request access" page to URL redirect them to where ever.