a large piece of info was dropped this episode, but i think it still could have had an a plot/b plot structure. i just don't think it held it's own bc cobel's backstory is pretty simple and peppered throughout the series. s2e7 was a better example of an episode entirely dedicated to one character bc gemma was a complete mystery up until that point. definitely not a bad ep, but weak compared to others and ESPECIALLY after such a strong episode.
i also hope milchick gets his own episode, we know basically nothing about him outside of lumon.