This is just one step away from eugenics. When the data is in the machine, you just know it will be used for malicious activities.
1) criminal practices of forced sterilisations, ethnic cleansing and mass assassinations to phase out undesired genes
2) the more generic practice of trying to improve the genetic characteristics of your children.
I don't think there is much point in debating 1). But we would be naive to think we are not already doing 2). What else is a prenatal test for down syndrome? What else is selecting your mating partner for desirable characteristics? In animals it's called breeding and it works pretty well. And if you can patch the DNA of your kids to remove potential risks of cancers or other deficiencies, why wouldn't you? Is it better to let cancer take its toll?