The thing is, they ended up expanding inhumans, and now inhumans have come to mean more than just 5 people. And she was one of them. I think the distinction is clear, but the whole fact that people have mistaken them for mutants is a part of their stories. From their first appearance, to Earth X, whose main premise was to make everyone on Earth inhuman so humans wouldn't discriminate against them because they saw what they did to mutants.
If you go to minute 15:00 you'll see how people felt about the inhumans before the articles went full on mob against them. Also, he even mentions that they weren't going to get rid of their premise.
They gave Medusa cancer and put Black Bolt in prison after this with an emphasis on their past actions.
I was reading X-Men that whole time, along with inhumans. This was after Avengers vs. X-Men repopulated the world with mutants, so there were more mutants all of a sudden. The young X-Men were traveling through time and space, Jean told Iceman he was gay, Cyclops started a revolution, which a lot of people liked because they took a harder stance against discrimination, and there was more. Through out this whole time, they never stopped revoked their classic "metaphor." Like Earth X stated 20 years prior, inhumans were treated like mutants. Duh. And we didn't see mutants die left and right until they did the event, but we all new they weren't going to get rid of the X-Men entirely because this was the 6th "extinction" event and it was par for the course.
What I didn't get about people's anger was that they were writing new stories for the X-Men and created some new characters, new tv shows, new movies, but because some people read an article on a website we know here, they started to tell them what they were seeing wasn't happening, and that they were side lining the X-Men. You could buy a lot of X-Men comics at the time. I did. Maybe some people complained about Bendis's writing, but they also complained about the Inhumans' writing saying it was worse than the X-Men books at the time.
The biggest problem was equating any form of an inhuman book as an assault on X-Men books. When they ended up making two X-Men events from it and even had a joint reboot. They were gaslighting them and fear mongering. It did exist in their imagination and it was put there by bad faith actors who wanted clicks.
These are from the
1970's