Oh I agree that Ozai felt threatening through the entirety of the series, his shadow looming over our protagonists along the way. I just feel that after his reveal he lost a lot of his ''grander'' then life mystique if you get what Im saying.
How Ozai looks exactly like an unscarred Zuko, but older.
Then realized that kind of reveal only works in live format and not animated, where every character sort of looks similar by default lmfao.
Yeah, I wish Ozai got a bit more time but I also wouldn't want him to get boring. You can't have too many scenes of him sitting around or you'll get tired of him and he can't fight and lose before he takes on Aang or it makes Aang's job look easy.