I'm not trying to be pedantic, I just don't think there's much difference between "Politics" and politics, and filing a lawsuit is a clearly political act. Politicians write laws so that they can be used in court. Even more straightforward-seeming court cases, like murder trials, are political in that the government can't apply every law to every person all the time, so it has to make political decisions about what laws and what people to focus on.
In this case, a large organization is asking the court to interpret a law that effects a huge portion of American society and determines when and how information can be spread. In the US, the court's interpretation of a law is as important if not more important than the legislative process that created the law.