Acceptance leads to people identifying with their stutter, leaving them resistant to treatment. Treatment would mean they are fundamentally changing their identity and people don't want that. Then this idea becomes pervasive and leads to a lack of urgency with research. Additionally, those same people that were told to accept and then have accepted it, tell others who are seeking treatment to "just accept it". That's not right at all. I hope you see how this is a vicious cycle. So yes, this does lead to less investigation to treat the condition when the people that have the condition have continuously just been told by others that they should just accept it. So they stay quiet. Research funding is determined by what the public deems is important. You mentioned that stuttering is a separate issue in the brain for a small number of people. Stuttering prevalence is around 1%. This is equal or around the same as schizophrenia, a disorder that has gigantic amounts of research going into it. We deserve just as much urgency as any other neurological disorder.