The article mentions a similar tournament that occurred last year where the human players won against the AI. Accomplishing this turn-around in the span of a year seems like quick progress to me, and also impressive. It is certainly a link in the sequence to more autonomously adaptive AI. So, while what you say might be logically true, following the progress of AI would indicate that this specific outcome is, in fact, pretty cool. Whether or not you are impressed by it is up to you, but it is progress.