Read the full decision.
There is an argument to be made that the president is a “federal officer” so the ruling does stand
What’s the argument that he’s not a federal officer? Basically everything in the Constitution refers to the office of the presidency, so claiming the president isn’t an officer sounds like some bullshit that idiots would come up with. Which makes sense why the republicans are trying that.
The argument that could be made is that in most of the rest of the constitution, anything that involves things the president can or can’t do explicitly says “the president”, so having an extensive list of positions that could be disqualified that doesn’t mention the president by name implies that the president isn’t included.
It’s not a good argument, and I suspect in saner times it would be pretty clear that the intent is that Trump can’t run.