LB – I think what RebYidd23 may be referring to, though I could be wrong, is that much of chassidim and chassidus today has differed from the movement the Baal Shem Tov originally started. The Besh”t had an intense focus on the everyday common person and the greatness of their simple emunah and seemingly insignificant devotions, showing how in truth they were quite beloved in heaven. Whereas today chassidus can often be somewhat elitist and insular (not all the time but definitely not rare).
I have an english biography on Reb Yoilish, and it quotes him as saying that the light of the Baal Shem Tov was only meant to last for like 200 years or something like that, implying that chassidus today is just a shell of what it used to be but no longer has the inner light it did at the beginning. I’ve also heard that he supposedly said none of the chassidus’s around today still have the essence of the Baal Shem Tov except for Chabad and Breslov (little known fact, he actually helped fund one of if not the very first printing of tikkun haklali in America, but told them not to publicize it so that people wouldn’t assume the tikkun haklali was just a Satmar thing and not read it).