Yes that’s what the other person is saying. It is clearly domestic terrorism but because the left in large part feel it to be a moral action that it isn’t domestic terrorism and that’s just wildly idiotic. Almost to a person terrorists believe themselves to be doing something morally correct while also being intentionally morally abborant.

It’s a very dumb term to use in earnest, just call them what they did and stop trying to make morality a legal question.