Turns out a little information is a useful thing:
"The blasphemy law was carefully crafted in such a way that we would fulfill the constitutional requirement, but on the other hand to make the offence as narrow as impossible… in other words, to make it virtually impossible for a prosecution to be taken,” the former minister told a local radio station.
The statute was only passed in 2009 because the Irish Constitution (of 1937) demands one. And when a complaint is made, an investigation is required. However, since not enough people were "outraged," Mr. Fry is free to continue being a prat on Irish television.