You showed proof.

Though it's confusing as the Dust Release would cover the Susanoo and if the Yata Mirror gives a 360 protection zone, wouldn't it be from anything that attacks outside of it? Meaning attacks from the inside would still harm whatever is inside of the Yata Mirror's 360 protection if it sorrounds Susanoo from all angles. Hence why people say that only the Yata Mirror will remain if Jinton is used on Itachi.

If Dust Release detonates inside of Susanoo then would Yata Mirror engulf Itachi's body through the Susanoo?