There's nothing wrong with the list of repos on that page. Although I think some aren't being used at present.
Edit: There was a thread somewhere, I looked, I couldn't find it, where some old repos were causing problems with upgrades. I cleaned up the list, I posted above, after seeing that thread, so, that list should be current. It doesn't contain any of the experimental repos that have been used to test xfce, lxqt, kde etc..