I have not said the data is incorrect, I have said it is only representative of one type of piracy, exactly as the authors of the linked article as well as the original source of the data have.

I've simply made a point of highlighting this fact as the tiles don't make it very obvious.

Once again:

It should be noted, as Torrent Freak does, these statistics only reflect a portion of any pirated content this year. The stats are specifically for single-episode torrents, rather than season-wide packages, and even more specifically they’re based on data from the torrenting platform BitTorrent. Just as television has grown and evolved across new formats in the last decade or so, so has piracy, with more and more people turning to sites hosting streams of pirated content, rather than “traditionally” pirating content through downloaded, local copies.