The description of how it split makes me suspicious.
Me too. It seems to make no sense. But without knowing how it was argued...will have to check that out later. Sometimes they get handcuffed by how something is argued, or the focus, especially if it is very narrow.
On the surface, my first thought was that Sotomayor and Kagan buy online and don’t like paying tax. It is a conflict as they are liberal and like the benefits of redistributing the wealth. Well, this obviously doesn’t line up well from a liberal and conservative perspectives. And, as I wrote, I don’t think any of the justices have had a real job (in a for-profit company), especially a small company, nor their own company. All of these would give them different perspective.