I see what you mean about it not helping to answer the question in a direct way.
Where I’m coming from is I think that if copy and copy were of a different origin completely, like from French vs Greek or something, and the homophone-ness (homophonity?) was a coincidence, then I could see the authors of the law using the much less common industry term without considering whether people would get confused.
But if one refers to the other, it seems implausibly confusing for them to use the way less common meaning and not expect anyone to get confused in a way that would change the meaning of the law. Or was the copyright law written by the characters of mad men??? Seems more like an overreach by certain media publishers.