I see a lot of poor arguments on all sides here.
The article in the OP brought up some good points, but didn’t always articulate things in the best way. And some of her points (like the one quoted in the OP about the drop in traffic to the pornhub website) doesn’t prove that Game of Thrones is porn, only (maybe) that it appeals to the same audience. She definitely was reaching with such comments.
As Catholics, I think it would be useful to look at how the Catechism defines pornography:
2354 Pornography consists in removing real or simulated sexual acts from the intimacy of the partners, in order to display them deliberately to third parties. It offends against chastity because it perverts the conjugal act, the intimate giving of spouses to each other. It does grave injury to the dignity of its participants (actors, vendors, the public), since each one becomes an object of base pleasure and illicit profit for others. It immerses all who are involved in the illusion of a fantasy world. It is a grave offense. Civil authorities should prevent the production and distribution of pornographic materials.
This definition is, at the same time, more narrow than viewing pornography as equivalent to nudity, but also broader than simply what appears on a website like “pornhub”. Note that even “simulated” acts qualify. The actors and actresses may just be pretending to have sex rather than actually having sex.
I have not seen Game of Thrones, but I would ask those who have to ask themselves: Does the show contain “real or simulated sexual acts” that are removed “from the intimacy of the partners in order to display them deliberately to third parties”? From the descriptions I have heard, it sounds like it.
Now, I can see why some might balk at just calling the show “porn” with no caveats or qualifications. But simply because a show does not include x% of pornographic scenes in every episode does not prove that the show never veers into the realm of pornography. It’s not an either/or proposition of
either the show is 100% porn
or it is 0% porn.
What I always kind of scratch my head about is when people defend explicit sex scenes as somehow integral to the story line. I don’t buy that. There are other ways to show that this character is depraved or that character really loves this other character. You don’t need full nudity with simulated sexual acts to show those things. Those scenes are included because it is titillating to the audience and because they can include them since they’re on HBO. I think that we would delude ourselves to think otherwise.
So, while I don’t find it useful or necessary to point fingers at people and yell “You watch porn!”, I think we owe it to ourselves to really ask ourselves (and ask the Lord) whether the manner in which we choose to recreate is re-creating us into a person who is closer to Christ or further away. And that goes for myself and for all forms of entertainment we engage in (not just this one TV show).