We made friends with the various program managers, did all the necessary due diligence, applied, got approved, downloading hundreds of terabytes of data, and then received a stern note from the leadership at NIH that we had to delete everything. Apparently, some Very Important People at NCBI didn't like Google and really didn't like the idea that we'd have a copy of all this data, even though the intent (I can say authoritatively since I was the founder of the project) was to accelerate scientific research.
It's now hosted on AWS as a public/private dataset.
I try to avoid human genomics or really any controlled-access dataset now. The total value in the data is much smaller than generally claimed, and entrenched interests go out of their way to gatekeep and sort of maintain an "artisanal, bespoke" approach to data processing.
Now, if you want to use this data to make strong conclusions about the relationship between genotypes and human intelligence: best of luck to you, as you'll be grabbing the electrified third rail of American politics and science. Nearly every foray into this area generates controversy, and even intelligent, good-faith researchers end up in a trap of "appearing to be racist, or sexist". With career ending consequences.
I study tardigrades instead now.