The problem isn’t that they aren’t typical superheroes. The problem is the way the stories are written.
Orion is the protagonist and everyone else is used as supoort to develop his character and tell his story.
In Inhumans it is clusterfuck where you have a group of people who want equal attention to the point that it isn’t even clear who the main person focus of the group even is until we get to the issue where Black Bolt’s backstory is introduced where it shows that BB is supposed to be the main man.
Yet because he is a silent character that doesn’t even have any inner monologue he ends up fading in he background.
Now since Inhumans are guest characters in the FF run it’s ok. But Marvel keeps using the same formula to tell stories where Inhumans are the focus and Black Bolt despite being the protagnist just fades in the background and becomes irrelevant for more than the story. It doesn’t help that the other characters are written pretty awful and basically are two dimentional jokes of characters while the main character is sitting silent in a corner panel not getting any development. Instead he is only used for powerlevelfaggotry in one scene out of an entire arc.