I'll acknowledge that there does seem to be movement toward Youngkin (though exaggerated), even if this is just due to people with no expertise in education thinking they understand it better than education professionals. I'll move this to Lean D for now, and modify my prediction to McAuliffe +3.5, but I'll note that I did the same thing in 2017. I'll be mad if my prediction is off by the same amount again.
There's no expertise needed to understand covering up rape for ideological reasons. That's the deciding factor here. McAuliffe would still be narrowly ahead with just the debate comment. Now it's a Vitter 2015 or Roy Moore 2017 style situation.
*There's no evidence McAuliffe was personally involved, but he made his entire campaign about how important it was to trust the school boards and then this dropped.