I didn't know the ball bounced because I couldn't track it in the video. If it did, that's not the shot I'm referring to.
I recall McEnroe hitting some shots like what I'm talking about, yes, and with the right technique, it's possible like everything else. I've hit them before, and used to hit them more before I began slicing.
Topspin allows for almost as much angle as slice; why do you think you can't control the ball with a topspin volley?