I have been telling folks that complain about SCOTUS procedurals that on merits cases when the rubber meets the road, cases like this will usually be at least 6-3. And when the eviction moratorium issue became a case based on merits rather than procedural, I figured when we got past procedurals and to merits it would go precisely this way.
SCOTUS also refused to hear a Biden administration plea for reprieve on a district court's order requiring it to reinstate the Trump administration's "remain in Mexico" policy requiring asylum seekers to stay in Mexico while they wait for a hearing in U.S. immigration court. That one was also 6-3. I am not surprised there either. I was kinda amused that DHS vs Regents was cited to bolster the ruling since conservatives whined a lot on the Chief Justice John Roberts rationale there; namely, that the Trump administration had not properly explained its decision to end DACA. Well, the court just struck the Biden administration with the same sword ruling that the Biden administration was unlikely to prevail in court in demonstrating that its decision to end the "stay in Mexico" policy was not "arbitrary and capricious" rather than reasonable and reasonably explained.
I wonder of those cheering the Chief Justice's application of the Administrative Procedures Act on the Trump administration's attempts to end DACA will be similarly euphoric on Biden's administration getting its wings clipped on its attempts to end the Trump era "stay in Mexico" policy. Or if those booing the DACA case and Chief Justice Roberts on DACA will similarly boo on this one. In neither case is that likely since the hyper partisans among us are rarely consistent and non-hypocritical. But I digress.