I've been thinking about this, what if when he said Jan 6 was a terrorist attack, he did it intentionally to have it on public record.
If he legally proves the feds were involved in the Jan 6 as they like to call it "insurrection," they can be classed as terrorists as well as whoever gave the command to breach the capitol barricade (Ray Epps).
I think if he meant to go that route he would have clarified why he said it on Tucker. He kept smiling when Tucker called him out as if he got caught. I think he has had time since the interview to figure out how to get ahead of this and he switched tactics