Right after a powerful, thematic episode like A Man Alone, Babel is the first episode that really feels like a one-off episode. While it’s not completely without its redeeming factors, it doesn’t really have any big themes, nor does it really focus on any one character.
The episode begins with an overworked O’Brien working desperately to maintain DS9’s computer systems. Everything is breaking down, and everything is a priority. It’s a workload that isn’t shared with the rest of the command crew. After all, they have time to complain about how the replicators aren’t working, and are creating a horrible cup of coffee. The slackers.
Really, in this episode, O’Brien doesn’t get any respect. In fact, once he repairs the replicator, triggering the release of an aphasia virus, he is soon written out of the episode, being unable to communicate. This is actually the first of the “poor O’Brien” episodes, although his role in this episode is short.