OK, so let me break it for you even to a simpler form.
1. If CREATING the material is the legal issue, Palegrass already broken the law, since he created the material presumably living in Ireland. But on other hand, how you want to prove that, since he could travel abroad and create the cut content somewhere else? If he moved his ass from his island, creation might happen somewhere else outside Ireland.
Erasing something from newer versions of a game, doesn't change original act of creation, right? That's if we assume that incriminating scenes were in fact created in Ireland.
2. If creating the material is the legal issue, another way to circumvent it, is having abroad accomplice, who's going to be pointed when it comes to autorship of incriminating parts of work. But then it should be noted in credits, that let's say DLC has other authors and Paul's arc or bar toilet scenes were created by other party, unsurprisingly not based in Ireland. And while these people weren't listed in game credits or they couldn't agree with Palegrass on terms, because he wanted to keep
Lisa as his solo project, so he discarded these scenes to keep it that way and don't include material created by others. But now, he reconsidered, decided to allow that foreign input and stuff created in other countries is now part of newer version of the game.
We could even recreate these scenes by changing some minor details, scene framing angles, do a rewrite of these scenes and if people doing this would be based outside Ireland, these wouldn't count as created in Ireland.
That's rather obvious. See?
So you have a plenty of options to tackle this problem, but the most important thing is whether you're want to stay conforming with the will of lawmaker or help artist to keep his story vision intact and not let state to mess up its integrity.
