Quote - I think Sanctum Arts HAS pulled that on people they suspected of pirating, even if those accused parties were not a party topirating their products.

Anton might also have changed the license use for Apollo at one point in time, but its hard to find an exact instance of this, I think.

Once again, I'm not a lawyer, but the license binding you is the one valid at the moment you buy something. All later modifications don't affect you, much like new laws don't apply on things which happened before they were released.
If the government all of a sudden releases a law that you can't wear white shirts, you can't be thrown into prison because you wore one last year; Only if you wear one after the law was published.