I forget the term, but please no jokes that are relevant to our society only.

The shoes joke did make sense in context though.

We've seen people having to go through customs and security checkpoints in previous games, so even with the high-tech scanners, taking off your shoes might very well still be a thing in the 2180s.

Another way to take it is that some people do take their shoes off when they enter someone else's home, so Ryder may have been jokingly asking if that's one of the house rules on Aya?

But either way, I don't mind that joke because Ryder was trying to defuse the tense situation with humour, so even if the Angaran's couldn't understand them, their tone was light and causal enough that they wouldn't appear threatening.

That's something that it's just unavoidable. You can make 1000 works about a "fictional world", it will always seem very much like ours. Take Dragon Age, for example: people are quite progressive, they seem to accept homosexuality and transgenders much better they would have been accepted on the real middle ages, cities look clean, mages practice fire magic inside a library, I mean, do you think that would be allowed in a medieval library?

Star Wars was always very much like our galaxy (politics sucks, dictators arise, etc, etc). Because if someone created a fictional work with actually medieval values, nobody would really like it. 

Like Game of Thrones?

Game of Thrones has some medieval values, but the characters we most like are actually quite modern. Women in real middle ages with as much power as they have in GoT would be quite rare. Yet is one of the things we more like in GoT. Why? Because it is modern, not medieval. 

Because Han did his 40 years ago, before modern sass banter became something you see everyday on twitter, the radio, TV, and in books. So you would have seen Han and chuckled with "nice wit", whereas you see Poe and roll your eyes and think "saw something like that on twitter yesterday."

If it helps, I always headcanon that as a loose translation.

It’s rarely a situation where the characters are “actually” speaking English in-universe (Mass Effect being an exception... though given how much our language has evolved even since the internet, their “English” could be foreign to us), and that means there’s some amount of implied translation happening in the dialogue. Languages can be extremely different from each other, so some information is going to be lost or distorted however you slice it. What if one side of the translation has pronomial genders, and the other doesn’t? What if the origin language has more tenses available than the target language? How do you translate idioms in a non-book medium without covering the screen with footnotes? How do you translate casual references to local events without adding an “As you know, xyz event happened...” on every corner?

IRL, translators have to constantly make decisions about how literally to translate. Too literal, and the target language folks won’t understand the real meaning — natural languages have waaaaay too many weird language-specific idioms, abbreviations, and slang. Without pages of footnotes, it would be gibberish. Too loose, and it might lose some of its original flavor.

So in short, I don’t picture Admiral Holdo as actually saying a phrase literally meaning “godspeed”. I assume what she said was something that’s not directly translatable, but it was something that served a similar purpose to when English-speakers say “godspeed”.

Yes, the lack of piety is one of the things I was thinking of. Religious elements feel more like an afterthought in Westeros, as though GRR Martin recognized he needed SOME kind of gods for characters to occasionally pray to but wasn't interested in flushing it out that much.

Thedosians are worse than us in some aspects, maybe this is an area where they’re somewhat better than us? Their advancement follows a different path, slower in some ways and faster in others.

Never said it wasn't "fairly accurate", I said there are many modern characters that don't hold medieval values. Although women could rarely rise to power, like I said, it is rare, in GoT we have two women warriors who are probably the best fighters alive in the continent right now, two queens, possibly three (Daenerys, Sansa and Cersei), I mean, that just WOULDN'T happen in middle ages, although from time to time women would rise to power. And why we love so many powerful women in GoT? Exactly because it is modern and just wouldn't happen. Nobody would want to just see most women portrayed as sex slaves for their husbands. 

Umberto Eco has an excellent text about the portrayal of medieval times (he himself actually wrote a medieval play where the main character is modern, and that's why we like him) 

oh my gawd, that Andromeda scene in Liam's personal quest was a total ripoff of a movie world I don't even watch! Mind blown! Lord Helmet should make them pay!