What is false? It is false that AA didn't close the show (aka TKO) Miranda in the first fight? In any case, you can't just assume that he would have KOed Miranda.
Well, I do, because Miranda cannot take hard punches. We've seen it against Kelly Pavlik. And AA punches a lot harder than Pav. Some months ago they tested AA punching power and the result was that he punches nearly as hard as a good heavyweight does. Don't ask me for a source. I've heard it on German TV and can't proof if this is true. Kelly Pavlik also hits hard and (what he does better than AA) he throws lots of precise combos.