It's probably that your video stream is more delayed than the chatters. On mobile Twitch has a huge delay especially on iOS which can be improved by clicking the Settings icon and choosing Low Latency player. Will still be more delayed than people on desktop.

I assumed the chat was informing the AI in some Way, so if there is a consensus or popular phrase, it gets worked in.

If you enable low-latency mode in Twitch, then you get the video about 5-15 seconds earlier (at the cost of that any minor connection interruptions may interrupt the video more).

It wouldn't surprise me if commenters were bots too.