Another angle could be the role of subtitles in setting up the episode's tone and foreshadowing events. For instance, the subtitle "Jibaro" refers to a South American guerrilla fighter, which in the episode "Thank You" (Season 8) was the one where Negan is being hunted by Alpha (who used to be a part of the Whisperers but there was a mix-up in the season's timeline). Wait, actually, maybe I need to verify the episode order and subtitles for Season 8.