Question regarding talos worship

I've completed all of skyrim and a lot of the side quests, tbh I didn't care as much about the lore back then so I didn't pay as much attention. But now as I've been playing oblivion remastered I find it odd that they banned talos worship in skyrim but 200 years ago in cyrodil seemed to encouraged it and even named part of the imperial city after him. What happened that made them change their minds about it?