It makes sens in some situations: for example, I'm using LemonLDAP::NG to protect my web apps, including Pydio. It's a cookie based SSO solution but emulate basic auth from the app POV. It can catch any URL and redirect users where I want. I'm using this feature to catch the classic logout link of every protected app and redirect them to the main portal. On a standard SME, as it's using pure basic auth, it doesn't make a lot of sense, but removing it would require patching Pydio itself, which I'd rather avoid