Piracy started as a term directly related to theft. Its use in the modern age for copying is also an attempt to frame the activity as theft, even though there is no action that can reasonably described as theft. Copying leaves the original right where it was, so no theft has taken place. I'm not saying that violating copyright is OK, just that the terms we are using to describe the wrongness are willfully dishonest. The punishments are also not fit for the crime, but that's another matter entirely.

I'm pretty sure piracy also includes threats to phisical security by the pirates. No such thing here. Let's not dilute the meaning of the word.