The vox article is mostly political, and offers misleading descriptions of Harris and Murray's conversation in many placement, and falsely represents it in a couple places. Some of its interpretation of science is questionable, but it does offer a solid piece of critique.

The evidence conclusively shows

1. Intelligence is largely genetically determined

2. There is some genetic difference between races

3. Races differ in mean intelligence

As a result, Harris and Murray are correct in saying that it would be a miracle if none of the racial difference in intelligence is attributable to genetics, but that's not a very substantial claim. While they were clear about how differences within racial groups are much larger than differences between, it would have been better if they had taken care to also point out that we simply do not know how much of the difference between races is attributable to genetics, except to say that it's extremely unlikely that the answer is "none" or "all".

By identifying genes relevant to intelligence, we can start to answer this question. That will require someone to perform such an analysis, however, and seeing how Murray has been treated, few people besides him and some actual white supremacists are likely to be interested in doing such an analysis.