A Supreme Court decision is not the opinion of a particular justice; it is the “opinion of the court written by Justice________.”
A dissent is a different matter as it is referred to as the dissent of Justice(s)_______.”
From the article: Justice Sonia Sotomayor ... was responsible for articulating the court’s position.”
Justice Scalia objected not only to the decision, but to the opinion’s incoherence. Justice Sotomayor clearly did not, in Scalia’s opinion, write a well crafted opinion. Another on the majority might have articulated their position better, at least in Scalia’s opinion.