Well, everyone has different views of things from everyone else. I don't really see the issue with a bunch of Black people in the US looking at history from their perspective, the project is referred to as a starting point for discussion by the people behind and even people critiquing it say it's a good thing to discuss. No one's going to look at how California will incorporate it and how it will turn out, checking details is too much work.
As for adding to his support, ehh, I think people who'd get so outraged over this crap already are drunk on the Kool-Aid (given Jones used Flavor-Aid why don't we use that...), I'd certainly hope Americans would take things more seriously than get upset about some people in another state learning things "the wrong way". Heh, how is the Civil War taught in the South, anyway ?