Hey you know what I'm suddenly and randomly frustrated about?
That we never got to see Zeb and Kanan discussing what it means to have survived a genocide. Yeah, Rebels is a kid's show, more so than TCW, and they had to gloss over a lot of the heavier stuff in the early seasons - but by S3 and S4 they had dealt with quite a few dark storylines already.
Seriously, it's such a missed opportunity that we barely ever got to explore their similarities in their experiences, as well as the differences.
For example, Zeb's people were wiped out when he was an adult, while Kanan was still a child. Does it make it harder for either of them? That's stuff to talk about.
Both Kanan and Zeb find out other survivors of their kind during the series (Ahsoka and Yoda in Kanan's case, maybe Obi-Wan if Ezra told him, and the two other Lasat + his hidden homeworld with a whole populatin in Zeb's case.) I can't imagine what that would do to someone, this knowledge that you weren't actually alone all this time - that there more, that you could have found each other. Do you feel guilty for not looking hard enough? Do you think about those who still died, years later after you thought they did, and if you had been looking maybe you could have saved them? Imagine if we'd seen Kanan and Zeb help each other deal with that!
Kanan gets to pass on his people's teachings - and sacred weapons - to a student - meanwhile Zeb never gets to do that. Never gets to give a young Lasat a bo-rifle the way Kanan could help Ezra build a lightsaber - or could teach Sabine to fight with one. Obviously that'd make Zeb feel something, right?
But on the other hand, Zeb has millions of Lasat still alive on Lira-San, when Kanan never gets to see a full Temple ever again. What was it like, leaving the nebula? Talking about what Zeb experienced down there, how the both of them feel about it?
Here, one more: Zeb has no choice but to constantly put his 'last survivor of a slaughtered race' status on display, for better or for worse, while Kanan can and has to hide who he is most of the time. Would that foster resentment in either of them, sometimes? You so badly want to tell the world that you're still here, you still live! And at the same time you're so tired of running you just want to become invisible and live in piece. Would showing who you are be more of a burden, or a relief? Zeb has a more obvious target painted across his back, but at the same time less people care about a Lasat still being alive compared to a Jedi. But Kanan has to live with the fear that he's disrespecting the legacy of his Order by constantly lying about his identity (it's such a sailant point in his character that he sheds all of the twenty years of hiding away just before he dies, to become Caleb Dume again).
Last one: both Kanan and Zeb have to confront multiple times the ones who slaughtered their respective people - Kallus, the Clones, and the Inquisitors. Both have to come to terms with those encounters, and it takes them a long time - and yet they don't discuss it with each other! Zeb growing to like Kallus - the asshole who was 'just following orders' but is learning to see beyond that and grows as a person - and Kanan growing to like the Clones - the ones who only ever wanted to do what was right and always had a conscience, but had that stolen away from them and were made to just follow orders - is so important! As is the fact that Zeb and Kallus never had any prior connection, but Caleb Dume loved his Clone trooper brothers. THE BAGGAGE.
I just... I just really wanted to see Zeb and Kanan helping each other through the shitton of trauma and grief and pain they're both carrying.