Another Genetics and Intelligence GWAS/Meta-Analysis

I have been hoping to look at more studies based on intelligence and genetics, and tried to reach out to scientists and authors touting genetic evidence for intelligence to cite specific studies that they find convincing.  I have received no reply to my request, so for now I will pick and choose as I see fit.  I take, and prefer, requests, however.

This critique is for the following study:

A combined analysis of genetically correlated traits identifies 187 loci and a role for neurogenesis and myelination in intelligence (Hill et al., 2017)

It is another GWAS/meta-analysis study.  Anyone who is following my critiques on this blog will probably assume, correctly, that I am going to harp on the lack of a random control.  I'll get to that, but wanted to make a few comments, first.