And? This is an adaptation, and that's fucking lazy. Anime is supposed to expand upon the source material but they're literally cutting corners by not bothering to put even the tiniest more effort. Maybe that fight back in episode 2 or 3 drained their budget or something idk.
tbh i'd rather them put their budget somewhere else instead of those super background characters, and with them all being generally the same and un-detailed, it kinda emphasizes them being the same kind of pieces of shit.
My theory is that the aliens are just fucking with the humans. Just think about how alien dude acts.
He carefree and shit, which means he doesn't care about how the humans who come into contact with the coins are suffering. Kind of like Kyubei from Madoka Magica. If you've seen that show you'll know what I'm talking about, if not plz go watch it 🙏🙏👌