I thought the SCOTUS threw out that individual mandate as unconstitutional, am I mistaken? And if so, how does any state get to resurrect it?
The indivdiual mandate was upheld by the SCOTUS, not thrown out.
The case -->> National Federation of Independent Business v. Sebelius - Wikipedia
Which is why Trump reducing the mandate penalty to zero is a temporary improvement at best. All of the mechanisms for the mandate are still in place, and the penalties will be dialed back up with the next administration.