I think you're overlooking the fact that black people are much more likely to know about it than white people, and that it's not a function of educational level alone.
Interesting link! But FYI it does look like general awareness of the experiments is higher in the Black population.
> With approximately 75% of Blacks and 60% of Whites in this study self-reporting awareness of TSS (i.e., they self-reported having heard of the TSS)
What isn't higher is accurate information about what was actually done in the experiments. This is interesting to know. But mere awareness of the experiments may be driving attitudes regardless of whether the specifics that people believe to be true are actually false.
