I think something interesting about this, besides how bullshit the immunity claim is, is that trump doesn't have immunity for private actions. So in New York, he wouldn't be immune and will still face repercussions. Meanwhile, kicking the decision on what constitutes an official act back to the lower courts is a bullshit delay tactic. It's still a bad decision all around that definitely puts presidents above the law. But there's still more to it than that.