Board Thread:Lore Discussion/@comment-209.7.3.188-20160303204000/@comment-26896471-20160313181630

Blademaster Jauffre wrote: The Reincarnation Of Akatosh wrote: Yet, The ban was enforced before Torygg died, As of The White-Gold Concurdant(?) The ban wasn't enforced. ''We didn't pay much attention when I was a boy - everyone still had their little shrine of Talos. But then, Ulfric and his Sons of Skyrim started agitating about it, and sure enough the Emperor had to crack down.'' -Alvor

It was only enforced after the Markarth Incident. Again, the opinion of one Imperial supporter. This is not sufficient evidence in its own right.