I have a hard time believing that.... or at least believing its all luck. Sounds like cop-out for someone who can't understand it. See: bumblebee's flying, or: moving faster than the speed of sound, or: the double slit experiment. These things "were impossible", until science caught up.
Maybe a person cannot react that fast, but that doesn't mean its suddenly straight up luck. There wouldn't be such a spread of talent at the upper echelon of sports if that were the case. There wouldn't ever be records to break, since everyone should hit some kind of physical ceiling. I know that humans are innately very good at pattern recognition. Perhaps minute changes in a person's posture tip off those who know what to look for, even at a subconscious level, allowing them to predict where/when to swing.
I don't have a study to cite or anything, but falling onto an explanation based on an absence of understanding is unacceptable to me. If something "can't happen" even though we have observed it over and over again, then its more likely the science is wrong, rather than the physical phenomenon.