Before revision:  While it seems clear from the presented data that human players have indeed outperformed a particular implementation of the Krotov algorithm (and, according to [ sorensen16 } ], as a consequence also algorithms like CRAB CRAB and evolutionary approaches evolve which perform worse than Krotov), there is no reason to believe that this finding is of any particular significance.
After revision:  While it seems clear from the presented data that human players have indeed outperformed a particular implementation of the Krotov algorithm (and, according to [ sorensen16 } ], as a consequence also algorithms like CRAB and evolutionary approaches evolve which perform worse than Krotov), there is no reason to believe that this finding is of any particular significance.