I think the bigger problem was that he was completely honest and showed that his message was consistent with his actions and votes over his career. Being smeared and pushed aside early on (see Rachel Maddow and all of the media trying to say Hilary had too many Delegates already pledged to her to overcome before the first primary vote did incredible damage that the "she got more votes than Bernie" group cleanly ignore had a huge effect, and that he still nearly won anyway shows how big the support really was that the Democratic party actively destroyed.
But there is another truth not mentioned: Males who were victims of sexual violence and rightfully thought the MeToo movement would help bring that to light as well were instead ridiculed and thrown out. Male victims of both male and female sexual violence are still not heard, which should have been part of the movement's focus. The recent reminder post about the man who tried to found a shelter for male victims but ended up broke and his efforts ignored and eventually disbanded should have been a strong ally for the movement, so the push for feminism rings somewhat hollow for those victims, even as they do support the message presented, but will not benefit from the movement's successes.