Anyone else have fond memories of playing around with a modchipped original Xbox? I know I do. I think I still have that thing somewhere in a box, XECUTER3 and all.

I don't think the article makes a big enough point about Kodi being rooted in XBMC, and XBMC being a project that started on the Xbox homebrew scene. Kodi's roots in XBMC are inherently tied to piracy, because every early developer and user had to chip their xbox, and they probably did that so that they could pirated games. That filters who is going to be contributing and using the project, so it's no surprise that movie and music piracy addons popped up with time when you consider that one of the first features of XBMC in the first place was being a launcher for pirated games.

Don't get me wrong, XBMC always has had a legitimate and legal use case, and Kodi certainly has a legitimate and legal use today. But the roots of the project had to do with piracy and it shouldn't surprise anyone that the project attracted piracy addons and continues to.