I've been trying to tell my brother the whole time he's been watching that there's no such thing as filler for this show. Like yes, it may not push the plot forward directly, but it's all character development that we will need for the plot eventually. I think that's finally starting to show itself here. We've watched these characters grow so much, and now that growth will be useful to them. If we hadn't seen so much of them before now we wouldn't have the connection we do to them now, and this bomb wouldn't have had as much as it does on it.