In all these clips he`s just standing in front of his opponent punching and not moving off the line after punching.
While this is true, Buster's footwork that night was on point. And to a certain extent I agree Buster looked good because Tyson looked bad. But there's no denying he was footloose and fancy free in Tokyo.
It was a bit more than that Mark but i'll leave it at that. It's not just fancy movement that makes for good footwork.
Ali had great footwork but at his peak he did a lot of moving for the sake of moving at times too. It sure didn't hurt him but quite a bit of it was unnecessary.