The article is about home schooling and the State's reaction to it. It is an interesting and thought-provoking topic in and of itself -- or maybe that is just because I am a parent, a cynic, and of Libertarian leaning, but in fact perhaps it is entirely tedious to most people, who knows? (Tell me!)
But as the author of the article points out themselves, the principles at play are applicable far more widely than just this one narrow subject. It is about the statist's creeping exercise of control and power over every aspect of life, liberties removed from your Constitutional rights one baby-step at a time, with overspun distortion of argument to make each of those baby-steps seem entirely innocent and justifiable, indeed to most people unquestionably right. But they add up to a Totalitarian state in the aggregate. Beware of baby-steps. From small acorns, mighty oaks grow. Some acorns should be left to flourish and add to the landscape for sure, but by no means all.