Isn't the MLB Hall of Fame voting done by sports writers/casters. MLB puts up a list of candidates and then they vote on one or maybe a couple players, and the top so many vote getters are in? Theoretically not voting against anybody, just for somebody else. And beyond the control of MLB, pretty much.
I'd say Buck (with a little help from Burns) did a hell of a promotion job, considering the number of Negro League shirts, hats and paraphernalia, I see.
Of course he couldn't help being an outstanding player, being trained by the Yankees.