By wide-ranging, I mean that the text of their opinions cover a lot of ground. Laymen shouldn't be surprised when opinions include details like this. In law school, I've seen opinions that include quotes from Broadway musicals.
It's all dicta. It is not the relevant part of the decision. SCOTUS Justices are not known for their brevity.
As opposed to their hubris and elitism, for which these unelected lawyers are renowned.