The author defined mediocre success to be the relative outcome of an experiment, such as an A-B test, he wasn’t talking about income levels or overall success.

The author defined mediocre success to be the relative outcome of an experiment, such as an A-B test, he wasn’t talking about income levels or overall success. It might be assumed that, since we are talking about startups and experiments, that we are not discussing self-sustaining businesses? Either way, which interpretation makes the rest of the article make the most sense?