It is attacking Spain; it's treating Spanish people as mere children, incapable of making their own decisions because local TV told them what to think. While conveniently not applying the same reasoning to their opinion in 1975, despite all the media and education having been controlled by the same guy for the previous 40 years.
As someone who was predisposed to think the push for independence was foolish, there's nothing like reading a bit of anti-independence propaganda to get one to think that maybe the independentists have a point.