Saying this "details the genetic basis of aging" *definitely* overstates the case. 1) It doesn't even cover most genes. 2) it only covers transcriptional and mRNA stability regulation. There's also translational regulation or post-translational modifications. 3) It's the genetic basis of CR effects, not of aging. Since CR affects aging, there's got to be some overlap, but not 100%.
I'm not knocking the study, which is very useful, just the reporting.