The mainstream therapies are diverting from speech therapies into pure self-acceptances?

The mainstream therapies are diverting from speech therapies into pure self-acceptances? The question sounds kinda unintelligible but one of my American-born Chinese friends(he himself is not an SLP though) said that at present, the mainstream reseachers are no longer paying emphasises on how to cure stutter, or I name it, 'giving up' how to for some reasons. And he added self-acceptances are in proximity to becoming the future 'cures' (He just said like that and maybe I was a little bit dyslexia), which means, there will no 'physical therapies' or medications that can repair brain dysfunctions in PWS's brains in the future but only some physical coaching about how to accept you are gonna be a permanent PWS forever and don't struggle any more, poured a backet of cold water onto me. I dunno if that's true that researches are giving up researches into stutter and calling self-acceptances a day, but at present, even though the researches are not abundant, the reseaches are eventually moving forwards and from time to time we can get some new researches and whatsoever, seemingly researches are still working out stutter instead of being bystanders.