I am beginning to think this is just a Democrat MacGuffin, being used to detract attention from something else.
https://en.wikipedia.org/wiki/MacGuffin
As someone else pointed out in another thread that the same ruling had a built in stay order which means President Trump will appear on the ballot (all he has to do is appeal the ruling and the stay continue until the Supreme Court rules).
There are several ways to look at this. Does the Supreme Court want to take away what has been a state right?
Does the Supreme Court want to block President Trump from being on any Democrat ran state’s ballots (because if it allows one state to keep Trump off, you know the others will do the same).
Or, option three, kick the can down the road until after the election and the case becomes moot?
https://en.wikipedia.org/wiki/MacGuffin
You raise very good points that may keep this within the courts.