He's trying to get his bag. No shade to FNS, but he most likely does not have a special contract like consistently larger streamers (Tarik, HasanAbi, etc.) requiring him to stream a set number of hours + ad running. He would just have an ad incentive offer for being a partner that is giving him forecasted ad revenue based on running a set number of ad minutes per hour. Naturally, Twitch will try to encourage him to steadily increase the number of ads per hour/increase the frequency because they earn better when he runs shorter more frequent ad breaks than longer less frequent ones.