It's a shame they didn't take the "OMG I'm related to a weird alien culture" angle and developed that a lot further. They kinda tried it with Frank Mc Gee, who tries to adjust from being a regular cop into being a superpowered cop in an alien society he doesn't know well. But there were so many possibilities. Some NuHuman characters would try to fully assimilate into Attilan, some would reject it, there is a lot of fascinating things about Attilan as a concept but also inevitably some of their values would be incompatible with human norms, the Old Inhumans who were born in Attilan would have different sentiments towards NuHumans as well. NOBODY ever explored any of that. WTF are you doing Marvel