Sorry, I misunderstood your statement. I thought you were interested in who the dissenters were, not that you found the two who dissented to be interesting.

Actually, I don't really found it to be surprising. Gorsuch is a more theoretical Consitutionalist and the "Twice put in jeopardy" is framed as it would seem to have been implied by the framers, not grasping at theoretical straws.
Despite coming up on the US DOJ side of things, he isn't a toady to federalism. Similarly, RBD is equally clear thinking in this. What is surprising is that there were more on the dissenting side.