Well, there's a letter posted from Joe today:
http://www.butchvoices.com/letter-from-founder
In my opinion they aren't listening. They've chosen an umbrella term that may not fit everyone, but they think this is the best way to move forward. According to him, the reason people have left is due to personality conflicts or because the work is exhausting, and that butch women and female identified butches have always been a part of Butch Voices.
My opinion: they weren't listening 2 years ago. They aren't listening now. You are welcome as a butch woman or female identified butch if you accept their terms and the way they run things. Same for anyone else under the "Butch Voices Umbrella."