Basically there's a time and place for everything. While capitalism is being challenged by the masses there is a need for discipline or else the revolutionary fervor of the masses dies out and spends itself. It is also channeled into "safe" channels by the system and representatives of the system, things like recall and regular elections and reformist boards and commissions that wind up doing nothing.
There also needs to be discipline even AFTER a revolution when the representatives of capitalism inevitably counterattack. During these times there is a need for the "centralism" part of democratic centralism. After a revolution is well established, then there can be more of a loosening of that discipline, but until then, you run the grave risk of losing everything to the counterrevolution if you lose the discipline too quickly.
Getting back to the prescriptions for black liberation, these councils would be invaluable towards bringing about a dual power situation in black communities. The ideal transitional strategy would be fulfilled when the people in the communities call on the councils instead of the established power centers of capitalism like the cops, city councils, mayors, etc. There is already a massive distrust of these organs of state power in the oppressed communities, so it should be easier in black and oppressed communities at first than it would be in white communities. But I could see it spreading if the model winds up working well. Once it spreads all over, THEN you have a definite pre-revolutionary situation bordering on revolutionary. Dual power is inherently unstable because it inevitably comes into conflict with the established state authorities. That conflict is the makings of a revolution.
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