The case had nothing to do with abortion. It is about whether a citizen has a private right of action under Federal law to sue a state's decision to exclude Medicaid payments to providers not deemed "qualified" "for any reason . . . authorized under state law".
The case involves a question of federalism and separation of powers. As such, the split in the circuits should have been reviewed by the SCOTUS, in large part because the Supreme Court's prior decisions have been the root cause of the ambiguity. The Court had historically permitted federal private rights of action that are not explicitly provided for under federal law, but then appeared to backtrack in Gonzaga v. Doe (from 2002), when it held that the creation of a private right requires "clear and unambiguous terms".
The SCOTUS, as we all know, doesn't review every case that is put before it, and refusing to hear this one is nothing unusual. I have no idea why the majority decided this controversy, which is admittedly inside baseball, didn't warrant the Court's current attention. But it pisses me off to see Clarence Thomas imply that the newest member of the Court was somehow intimidated into not seeing things Thomas' way. THIS ISSUE IN THIS CASE HAS NOTHING TO DO WITH ABORTION.
Welcome to the Court, Justice Kavanaugh, just don't be surprised at being back-stabbed by your fellow conservatives.