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).
It was obvious to me that he was talking about the insiders at the event, but did not want to call them out by name YET!!!