Deuel did not win this match, Nevel lost it. Nevel got control of the table many times after the soft break, but behaved immature and gave it away.
Kind of embarrassing to see his last shot, and then conceding the match with 8 balls left on the table, including one cluster. Very unprofessional behaviour, and he was obviously not in balance. Perhaps there is a history between these two?
I dont feel that this break is that effective against a player who can keep his composure. Deuel trailed 0-4, and started to softbreak. That means a lot of safety battles. Between to good players, safety battles normally means that you trade games. Nobody runs away. Nevel could have let the percentages work, and probably just kept the same lead until the match was over.