Yeah this is a definition of “theft” that doesn’t really work at all with the commonly used one.
Like, if you download a torrent, it was uploaded by someone else, willingly. If they bought a DVD and handed it to a friend, that friend wouldn’t be stealing the DVD. But now, if they upload the file to the internet for other people to watch, this class is calling that theft.
Its the kind of “theft” that leaves no victims. The alleged “victim” isn’t the person from whom the content was downloaded, no, it’s the third party who originally sold that person the product in the first place.
The whole concept isn’t logically consistent, but the corporations wrote the laws and get to decide how they are enforced and what they mean so it doesn’t matter that the law makes no sense and is punishing people for “crimes” that are, at their very core, victimless.