This is not accurate. Look at the dissenters in that case. It's opinion by Kav, but dissent by the Unholy Trinity. I think all of today's cases break 6-3 or 5-4 on ideological lines, so it's pretty easy to see if the decisions are good or bad simply by looking at the dissenters.
If they didn't give unfettered power to the HHS secretary, then they would have eliminated the Task Force and undone all its work. I mean, the HHS secretary is in fact supposed to have that power, unless I'm not grasping something (possible as I have been super distracted this morning). The HHS Secretary still has to obey the APA