There's like a ton of tabs for like "Mor'Dhona sidequest" "Coerthas sidequests" etc.

Do cutscenes/quests containing cutscenes even EXIST for these areas (Or any sidequests that aren't Hildebrand for that matter)? Furthermore why can't I rewatch things like the Postman events? The selectiveness as to what qualifies as a cutscene is pretty upsetting at times.