Strateahed, I'm from St. Louis, and I've met just about everybody in Miles family. The people who loved Miles and his music in the beginning, still felt unwavering love for Miles the person, but privately, they felt he could leave some of his new music on the doorstep when he came to visit them, which is something they would never admit publicly. Miles brother and I have similar tastes in jazz, and his taste couldn't change to accommodate some of Miles music after "Bitches Brew".
I have seen and discussed things from the very opposite point of view as you presented. But when you think about it, if your brother were a musician, and fell to banging on garbage cans, you would love him no less. My point is, I have known a number of Miles "original" fans who have a negative view of his music after "Bitches Brew"; Miles knew this would happen after he made radical changes in his music.