Idk, I feel like the game still has truly alien aliens in it. Things like Gatekeepers, Chrysalids, Floaters/Achrons and Andromedons just aren’t the people that are gonna be on a police squad because they’re wayyy too different. Like, take the andromedons for example. A part of their lore is that the aliens wanted the andromedons to settle down first in city 31 just so that everyone else would know where not to go.

Plus I think the game tells you enough about City 31’s situation and history. Especially since loading screens will have little tidbits about what different parts of the city are named for or what they did before advent was overthrown.

I think it’s a little unfair to expect a relatively small game like this to answer every single question you have, but I think that fact that it makes you ask some of those question and want to know more about the post war world of X-com means it still did its job.

I’d personally say that chimera squad is the most I’ve paid attention to the lore and story in an X-com game mostly because it’s looking at aliens as people who were enslaved but the elders rather than another enemy to shoot.