The AI has surpassed human intelligence in this case in my opinion. But, only in one field. Ke wasn't only playing GO, he was also breathing, possibly thinking about some other problems in his personal life etc.
So, while I do think an AI beat Ke (and so human intelligence) in playing GO, he was nowhere near beating human intelligence as a whole (the process of living, the ability to perform lots of other tasks without any need for new programming etc). They are on the right track to completely surpassing us humans, but I feel like we are not there yet.

It is a small victory for the robots, but we are still more competent... for now.