I don't think they mean spoof in such a technical way. I think they just mean it as "the You Have Downloaded website could be just generating files to go with I

I don't think they mean spoof in such a technical way. I think they just mean it as "the You Have Downloaded website could be just generating files to go with IPs", and similarly "any torrent logs may have been spoofed/made up." Obviously the next step for the You Have Downloaded site is to track in real-time and say "This IP is currently downloading x,y,z."