I think it was very definitely a case of centring it around Avon, although his relationship with Keiller doesn't have that much to do with things. I'm not sure if there were production reasons and whether Keating's heavy involvement in Games and Orbit had anything to do with it.
I thought it might be because Keiller was too similar to Vila, but that just underlines the problem of conceiving the story the way they did to begin with. If the guest star overlaps with the regular, why should it be the regular who gives way in favor of the guest star, instead of the other way around? Unless somebody really wanted to build an episode around Roy Kinnear.
And actually I kinda like that Vila is the reticent one. As the only natural criminal amongst them it's quite telling that he smells a rat (I mean Vila always smells a rat, but still!)
Yeah, but it still feels wrong that the big heist episode of the season isn't a showcase for the master thief. He got "City at the Edge of the World" as a focus last season, but that was a solo adventure where the crew didn't get to see how awesome he was in his element. This would've been a great chance for Vila to take the lead and guide the others through his world.
It is very weird that they call them animals, I agree. Perhaps the best word they could come up with once they decided, for some reason, to only have single word episode titles in Series D.
Which is why I hate it when series insist on using only single-word titles. It's arbitrarily limiting and makes the titles boring and hard to tell apart.
Hmm... Series A is the only one where single-word titles are in the minority. It has 5, B has 9, C has 7-8 depending on how you count "Death-Watch." So I'd suspect that single-word titles were Chris Boucher's preference, except he wrote the episode with the longest title, "City at the Edge of the World."
The timeline is a tad squiffy as well, Justin's project started six years before the Andromedans invaded, yet the galactic war gets mentioned as a driving force behind the project yet, as far as we can determine, the war lasted hours, at most days.
I dunno, I get the impression that it lasted longer than that, given how far it spread across the galaxy. It lasted long enough to devastate the Federation military, but long enough that they were able to outlast the Andromedans by attrition, and long enough that Servalan had time to decide the war was nearly won and travel to the front to make an appearance. Previous episodes had established that it took a significant amount of time for the Liberator, the fastest ship in the known galaxy, to reach the edge of the galaxy, so it should realistically have taken weeks for the battle to spread back to Federation space. (Although realism is out the window when the tiny life capsules from the Liberator were able to drift to two or three different star systems by "Powerplay.")
There really isn't anything in "Aftermath" to establish how much time has passed since the end of "Star One." The opening scenes imply that the Liberator is abandoned just after Star One is destroyed, but it's a montage sequence, so we could interpret it to be compressing a more extended series of events, like a "Previously" recap, except it's a recap of the stuff between seasons that we didn't see.
Granted, the returning characters are wearing the same outfits in "Aftermath" that they wore in "Star One," implying only a short time has passed, but then, "Space Fall" had the characters in the same clothes and haircuts after supposedly spending four months on the prison transport, and they usually did stick with consistent outfits for multiple episodes, so that isn't definitive. (It would be out of character for Servalan to wear the same outfit more than once, but war demands sacrifices, I guess.)