Well, it's not exactly the only blog post on this site about medieval pigs. At the bottom of the post there is a link to their other posts about those animals[0], of which there are 12 at this moment. It seems like some medievalists at Universiteit Leiden are interested in pigs, and that looking at medieval video game pigs is just one of the ways they talk about them.

[0] https://www.leidenmedievalistsblog.nl/tags/medieval%20pigs