I feel like thats different because it was telling the story of the real person. The movie wasn't being insensitive, it was being factual and accurate to the actual story. It was an issue for him. For almost everyone, public speaking is anxiety-inducing, stuttering adds another thing to worry about - and being anxious about it is entirely accurate. Even on this sub, there's posts pretty frequently about having to give presentations. In the end, he delivers his speech, and he still stutters. He wasnt cured. I havent seen the movie in a long time, but I believe he says something along the lines of, "it wouldnt be a speech of mine if i didn't stutter." Im not saying its a perfect movie by any means, but i do think it is one of the best portrayals of stuttering to date.