Maybe we have a different definition of it? Auto combos from what I've seen is typically defined as a combo that you can do that is performed by pressing the same button over and over. It doesn't mean every combo in the game can be done automatically.
That's not an auto combo, that's a natural string.
Same thing for say SFII, mashing light punch a few times to combo isn't a auto combo even though it does technically combo into itself.