It's probably like the typical matching engines that maintain player ratings based on win/loss record and pair you with people of similar rankings. He presumab

It's probably like the typical matching engines that maintain player ratings based on win/loss record and pair you with people of similar rankings. He presumably wanted to be able to stomp on everyone, not realizing that the game would quite correctly not pair people with him that he could stomp all over. It's based on a reasonable distribution of ability levels, he's enough of an outlier that there's nobody near him and thus no matches.