It's how they are supposed to be, all groups are supposed to show a close relationship to the fans, even if the members hate each other. It's just how it is. It's how the game goes.
And when a member gets kicked out they pretend that member never existed. So yes sserafim is fake...in the same way kpop is fake. And yes I know this is old news, I know it always has been fake and always will be.
Well then my point stands. None of us know how they really feel and the doc only shows the lengths the industry will go to edit "reality".