it’s much harder to prove because the official acts part also includes all the evidence and testimony needed to prosecute.
So if you can’t use evidence from official communication to prove that the treason happened. That makes the prosecution of presidents very difficult. It’s going to be extremely difficult for a prosecution to tell a coherent story to a jury without including any “official” acts as part of the crime.
There’s a saying you might want to get familiar with
“If everywhere you look, all you see is assholes, maybe you’re the asshole.”