In the 2015 case Perinçek v. Switzerland, the European Court of Human Rights applied Article 10 to find against a Swiss law making it a crime to deny the Armenian genocide. Can you imagine a Soviet court ever striking down a genocide denial law?

The decision is controversial because it introduces a double standard into the Court's case law – it had previously upheld laws criminalising Holocaust denial, now it sought to distinguish the Holocaust from the Armenian genocide in a way many find arbitrary and distasteful – the consistent thing would be to either allow denying both or disallow denying both.

But still, it just shows how mistaken your Soviet comparison is.